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What’s the difference between MSG and table salt? A chemist explains

<a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a> It’s dinner time. You’ve worked hard to prepare a nutritious and tasty meal. But after taking your first bite you feel something is missing. Perhaps you should have added more salt? Pepper? Or maybe even something more exotic like monosodium glutamate, better known as MSG? There are many <a href="https://theconversation.com/explainer-what-are-e-numbers-and-should-you-avoid-them-in-your-diet-43908">food additives</a> used in both home cooking and commercial products. These ingredients improve the flavour, smell, texture, appearance and longevity of foods. Salt and MSG are two well-known food additives. Both contain sodium, but there are plenty of differences which you can use to your benefit. <h2>What is a salt?</h2> Salts are made of positively and negatively charged components called ions. Salts generally dissolve in water, and are brittle. The names of salts often feature a metal (positively charged) followed by a non-metal (negatively charged). The common kitchen ingredient we call “salt” is just one type of salt. To distinguish it from all other salts, we should more specifically refer to it as “table salt”. Chemically, it’s sodium chloride. <h2>Sodium chloride</h2> After the quick chemistry lesson above, we can see that table salt, sodium chloride, contains a positively charged sodium and a negatively charged chlorine. These charged components are arranged in crystals of salt in a regular repeating pattern. Each sodium ion is surrounded by six chloride ions and each chloride ion is surrounded by six sodium ions. This arrangement gives the crystal a “cubic” form. If you look closely at salt, you may see cube-shaped crystals. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=600&fit=crop&dpr=1 600w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=600&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=600&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=754&fit=crop&dpr=1 754w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=754&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=754&fit=crop&dpr=3 2262w" alt="" /></a><figcaption>The chemical structure of table salt forms a cube of sodium and chloride ions. <a class="source" href="https://www.shutterstock.com/image-vector/sodium-chloride-nacl-structure-ionic-crystal-2417242373">Sandip Neogi/Shutterstock</a></figcaption></figure> Sodium chloride is very abundant. It is found <a href="https://theconversation.com/i-have-always-wondered-why-is-the-sea-salty-83489">dissolved in Earth’s oceans</a>. Mineral deposits of salt, known as halite or rock salt, formed from the evaporation and crystallisation of ancient seas. Depending on the source, the salt may contain many other trace minerals that can even add colour to it, such as the pink-coloured Himalayan salt from Pakistan. Salt can also be fortified with <a href="https://www.who.int/publications/i/item/9789240053717">sodium iodide</a> as a public health measure. Describing the taste of salt is quite difficult without using the word “salty”. It’s a very common food additive, as it is so abundant and versatile. It is an essential ingredient for many traditional food preservation techniques for meats (pork and fish), vegetables (kimchi, sauerkraut and pickles), and dairy (cheese and butter). Salt is considered a universal flavouring agent. It can mask bitter flavours and bring out sweet, sour and <a href="https://theconversation.com/the-asian-roots-of-umami-the-fifth-taste-central-to-thanksgiving-fare-50699">umami</a> (savoury) ones. Despite popular depictions of <a href="https://theconversation.com/that-neat-and-tidy-map-of-tastes-on-the-tongue-you-learned-in-school-is-all-wrong-44217">taste maps</a>, there is no one place on the tongue where we taste salt. Other sodium salts can also give a “salty” taste, but the effect declines (and can even turn to bitter) with negatively charged components other than chloride. <h2>MSG or monosodium glutamate</h2> Monosodium glutamate is also a salt. The glutamate is the negatively charged form of glutamic acid, an amino acid that is found in nature as a building block of proteins. MSG, and more generally glutamates, are found in a wide range of foods including tomatoes, Parmesan cheese, soy sauce, dried seaweeds, Worcestershire sauce and protein-rich foods. All of these foods impart umami flavours, which are described as savoury or meaty. Commercial MSG is not extracted from the environment but produced by bacterial fermentation. Glucose is converted to glutamic acid, which is further processed by adding sodium hydroxide to form MSG (and water). MSG is sold as crystals, but they have a long, prismatic shape rather than the cubic form of sodium chloride. It’s worth tasting a few crystals of MSG directly to experience the native taste of umami. Despite decades of bad press and concern, <a href="https://theconversation.com/msg-is-back-is-the-idea-its-bad-for-us-just-a-myth-or-food-science-237871">MSG is considered safe</a> to consume in the concentrations typically found in or added to foods. Table salt and MSG both contain sodium, but at different percentages of the total weight: table salt has around 40% sodium, versus just 14% in MSG. You are also more likely to be routinely adding table salt to your food rather than MSG. Eating too much sodium is well known to be unhealthy. <a href="https://theconversation.com/this-salt-alternative-could-help-reduce-blood-pressure-so-why-are-so-few-people-using-it-221409">Potassium-enriched substitutes</a> have been suggested for a range of health benefits. <h2>A flavour enhancer</h2> The flavour of MSG can be elevated further by combining it with other food additives, known as sodium ribonucleotides. Japanese and Korean cooks figured this secret out long before chemists, as boiling dried fish and seaweed produces foundation stocks (dashi) containing a mix of naturally sourced glutamates and ribonucleotides. Ribonucleotides are classified as “generally considered as safe” by <a href="https://www.cfsanappsexternal.fda.gov/scripts/fdcc/index.cfm?set=FoodSubstances&id=DISODIUMINOSINATE&sort=Sortterm_ID&order=ASC&startrow=1&type=basic&search=disodium">food standards authorities</a>. Humans consume many grams of the natural equivalent in their diets. What can be more problematic are the carbohydrates- and fat-rich foods that have their flavours enhanced, which can potentially lead us to eat excessive calories. The combination of MSG and ribonucleotides produces a more-ish sensation. Next time you see a bag of potato chips or instant noodles, have a quick look to see if it contains both MSG (E621) and a ribonucleotide source (E627–E635). I personally keep a jar of MSG in my kitchen. A little goes a long way to elevate a soup, stew or sauce that isn’t quite tasting the way you want it to, but without adding too much extra sodium.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237668/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/whats-the-difference-between-msg-and-table-salt-a-chemist-explains-237668">original article</a>.

Food & Wine

Airlines cancel flights after volcanic eruptions. An aviation expert explains why that’s a good thing

<a href="https://theconversation.com/profiles/patrick-murray-2027113">Patrick Murray</a>, <a href="https://theconversation.com/institutions/university-of-southern-queensland-1069">University of Southern Queensland</a> At least three airlines <a href="https://www.abc.net.au/news/2024-11-13/flights-to-and-from-bali-cancelled-due-to-volcanic-ash/104593698">cancelled flights between Australia and Bali</a> this week after a volcano eruption in eastern Indonesia spewed a vast plume of volcanic ash into the air. But while would-be holiday makers are naturally <a href="https://7news.com.au/sunrise/volcanic-eruption-in-indonesia-forces-airlines-to-cancel-flights-to-bali-stranding-frustrated-passengers-c-16732486">upset</a> at having their plans disrupted, it’s worth remembering it’s not safe to fly planes through volcanic ash. So, how do airlines decide it’s not safe to fly when a volcano erupts? And why is volcanic ash so dangerous for aircraft, anyway? <h2>What does volcanic ash do to a plane?</h2> Volcanic ash particles are very, very abrasive. They can cause permanent damage to windscreens in the aircraft and can even make windscreens look opaque – like someone has gone over them with sandpaper. Imagine getting spectacles and scraping them over and over with sandpaper – that’s what you’d see if you were sitting in the cockpit. Volcanic ash can also clog or damage external sensors, leading to erroneous readings, and can infiltrate an aircraft’s ventilation system. This can affect cabin air quality and lead to potential respiratory issues. But the main issue, in fact, is the impact volcanic ash has on engines. A jet engine works by drawing in air, compressing it, mixing it with fuel and igniting it. This creates high-pressure exhaust gases that are expelled backward, which pushes the engine (and the aircraft) forward. The correct balance of fuel and airflow is crucial. When you disrupt airflow, it can cause the engine to stall. Ash particles that get inside the engines will melt and build up, causing disruption of the airflow. This could cause the engine to “flame out” or stall. Volcanic ash has a lot of silica in it, so when it melts it turns into something similar to glass. It won’t melt unless exposed to very high temperatures – but inside a jet engine, you do get very high temperatures. There was a famous incident in 1982 where a <a href="https://theaviationgeekclub.com/the-story-of-british-airways-flight-9-the-boeing-747-that-lost-all-four-engines-due-to-volcanic-ash-yet-it-landed-safely/">British Airways Boeing 747 plane</a> was flying in the vicinity of Indonesia and lost all four engines after it encountered volcanic ash spewing from Java’s Mount Galunggung. Fortunately, the pilot was able to <a href="https://simpleflying.com/gallunggung-glider-the-story-of-british-airways-flight-9/">restart the engines and land safely</a>, although the pilots were unable to see through the front windscreens. <h2>How do airlines decide it’s not safe to fly when a volcano erupts?</h2> The decision is made by each airline’s operational staff. Each airline’s operational team would be looking at the situation in real time today and making the decision based on their risk assessment. Every airline has a process of risk management, which is required by Australia’s Civil Aviation Safety Authority. Different airlines may tackle risk management in slightly different ways; you might have some cancelling flights earlier than others. But, in broad terms, the more sophisticated airlines would come to similar conclusions and they are likely all communicating with each other. Mostly, they make the call based on the extent of the plume – how big the cloud of ash is and where it’s going, bearing in mind that winds vary with altitude. As you get stronger winds with altitude, the ash can drift quite far from the source. There is also a United Nations agency called the <a href="https://www.icao.int/Pages/default.aspx">International Civil Aviation Organization</a>, which issues guidance on volcanic ash hazards. Various meteorological agencies around the world work together and liaise with aviation authorities to spread the word quickly if there is an eruption. For airlines to resume flights, the ash needs to clear and there needs to be a low probability of further eruptions. <h2>Passenger safety is the priority</h2> The underpinning reason behind these flight cancellations is safety. If you lose engines and you can’t see out the window, the risk to passenger safety is obvious. Naturally, people are upset about their holiday plans being held up. But it’s actually in passengers’ best interests to not fly through volcanic ash.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/243576/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/patrick-murray-2027113">Patrick Murray</a>, Emeritus Professor of Aviation, <a href="https://theconversation.com/institutions/university-of-southern-queensland-1069">University of Southern Queensland</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/airlines-cancel-flights-after-volcanic-eruptions-an-aviation-expert-explains-why-thats-a-good-thing-243576">original article</a>.

Travel Trouble

Matcha is having a moment. What are the health benefits of this green tea drink?

<a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Matcha has experienced a surge in popularity in recent months, leading to reports of <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">global shortages</a> and price increases. If you haven’t been caught up in the craze, matcha is a powdered version of green tea. On a cafe menu you might see a hot or iced matcha latte, or even a matcha-flavoured cake or pastry. A quick google brings up <a href="https://www.foodandwine.com/tea/matcha-tea/matcha-recipes">countless recipes</a> incorporating matcha, both sweet and savoury. Retailers and cafe owners <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">have suggested</a> the main reasons for matcha’s popularity include its “instagrammable” looks and its purported health benefits. But what are the health benefits of matcha? Here’s what the evidence says. <h2>First, what is matcha?</h2> <a href="https://www.mdpi.com/1420-3049/26/1/85">Matcha</a> is a finely ground powder of green tea leaves, which come from the plant Camellia sinensis. This is the same plant used to make green and black tea. However, the <a href="https://naokimatcha.com/blogs/articles/how-matcha-is-made-in-japan">production process</a> differentiates matcha from green and black tea. For matcha, the tea plant is grown in shade. Once the leaves are harvested, they’re steamed and dried and the stems are removed. Then the leaves are carefully ground at controlled temperatures to form the powder. The <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6571865/">production process</a> for green tea is simpler. The leaves are picked from the unshaded plants, heated and then dried. We then steep the dried leaves in hot water to get tea (whereas with matcha the whole leaf is consumed). With black tea, after the leaves are picked they’re exposed to air, which leads to oxidation. This makes the leaves black and gives the tea a different flavour. <h2>A source of phytonutrients</h2> Phytonutrients are <a href="https://theconversation.com/phytonutrients-can-boost-your-health-here-are-4-and-where-to-find-them-including-in-your-next-cup-of-coffee-132100">chemical compounds found in plants</a> which have a range of benefits for human health. Matcha contains several. Chlorophyll gives plants such as Camellia sinensis their green colour. There’s some evidence chlorophyll may have <a href="https://www.mdpi.com/2223-7747/12/7/1533">health benefits</a> – including anti-inflammatory, anti-cancer and anti-obesity effects – due to its antioxidant properties. Antioxidants neutralise free radicals, which are unstable molecules that harm our cells. Theanine has been shown to <a href="https://www.mdpi.com/2504-3900/91/1/32">improve sleep</a> and <a href="https://link.springer.com/article/10.1007/s11130-019-00771-5?crsi=662497574&cicada_org_src=healthwebmagazine.com&cicada_org_mdm=direct">reduce stress and anxiety</a>. The only <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/theanine">other known</a> dietary source of theanine is mushrooms. Caffeine is a phytonutrient we know well. Aside from increasing alertness, caffeine has also demonstrated <a href="https://www.tandfonline.com/doi/full/10.1080/10408398.2022.2074362?casa_token=ADALIs6M3iAAAAAA%3AXpY35se0zLddAEIbZAaeCcDaNWm94s2WJaDHfXDRvVZgYq_xTxsCFuvtrtNXMXAL9uNIvLlYzO30aA#abstract">antioxidant effects</a> and some protection against a range of chronic and neurodegenerative diseases. However, too much caffeine can have negative side effects. Interestingly, shading the plants while growing appears to <a href="https://scijournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/jsfa.9112?casa_token=KxVD9i9p4BsAAAAA:OwGTauXFHAndyJkam8WuXrmGQ2k1kaSRu5pOqJOrhSyRSeWkDwdrI23qaD5WVH1HGqZLFdsjP9ZTvolw">change the nutritional composition</a> of the leaf and may lead to higher levels of these phytonutrients in matcha compared to green tea. Another compound worth mentioning is called catechins, of which there are several different types. Matcha powder similarly has <a href="https://theconversation.com/matcha-tea-what-the-current-evidence-says-about-its-health-benefits-202782">more catechins</a> than green tea. They are strong antioxidants, which <a href="https://link.springer.com/article/10.1186/s41702-020-0057-8">have been shown</a> to have protective effects against bacteria, viruses, allergies, inflammation and cancer. Catechins <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/catechin#:%7E:text=Catechin%20is%20naturally%20present%20in,containing%20many%20catechins%20%5B130%2C131%5D.">are also found</a> in apples, blueberries and strawberries. <h2>What are the actual health benefits?</h2> So we know matcha contains a variety of phytonutrients, but does this translate to noticeable health benefits? A review published in 2023 identified only <a href="https://www.sciencedirect.com/science/article/pii/S2665927122002180">five experimental studies</a> that have given matcha to people. These studies gave participants about 2–4g of matcha per day (equivalent to 1–2 teaspoons of matcha powder), compared to a placebo, as either a capsule, in tea or in foods. Matcha decreased stress and anxiety, and improved memory and cognitive function. There was no effect on mood. A <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0309287">more recent study</a> showed 2g of matcha in older people aged 60 to 85 improved sleep quality. However, in <a href="https://www.mdpi.com/2072-6643/16/17/2907">younger people</a> aged 27 to 64 in another study, matcha had little effect on sleep. A <a href="https://link.springer.com/article/10.1007/s11130-022-00998-9">study in people with obesity</a> found no difference in the weight loss observed between the matcha group and the control group. This study did not randomise participants, and people knew which group they had been placed in. It could be hypothesised that given you consume all of the leaf, and given levels of some phytonutrients may be higher due to the growing conditions, matcha may have more nutritional benefits than green tea. But to my knowledge there has been no direct comparison of health outcomes from green tea compared to matcha. <h2>There’s lots of evidence for green tea</h2> While to date a limited number of studies have looked at matcha, and none compared matcha and green tea, there’s quite a bit of research on the health benefits of drinking green tea. A <a href="https://www.sciencedirect.com/science/article/pii/S0944711317300867?casa_token=dpbAEQQ7Is4AAAAA:U6aggqZM_G0KJ8hkhx0TGSvQywr4utlgKzwUnUj9x5t9eWd-FKENjbTvUv6s4TBTaPYrob-qQkk">systematic review of 21 studies</a> on green tea has shown similar benefits to matcha for improvements in memory, plus evidence for mood improvement. There’s also evidence green tea provides other health benefits. Systematic reviews have shown green tea leads to <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ptr.6697?casa_token=1eAbmeGillYAAAAA%3ABNGBB6EuRFXIDWHgsa7E798wfC0MQK2r3yOmAlFzR2sxyD9Xt837VoCel0l6Tsh3RRO19t-YUm1GqO7Y">weight loss in people with obesity</a>, lower levels of <a href="https://link.springer.com/article/10.1186/s12937-020-00557-5">certain types of cholesterol</a>, and <a href="https://journals.lww.com/md-journal/fulltext/2020/02070/Effect_of_green_tea_supplementation_on_blood.36.aspx/1000">reduced blood pressure</a>. Green tea may also <a href="https://www.nature.com/articles/s41430-020-00710-7">lower the risk of certain types of cancer</a>. So, if you can’t get your hands on matcha at the moment, drinking green tea may be a good way to get your caffeine hit. Although the evidence on green tea provides us with some hints about the health benefits of matcha, we can’t be certain they would be the same. Nonetheless, if your local coffee shop has a good supply of matcha, there’s nothing to suggest you shouldn’t keep enjoying matcha drinks. However, it may be best to leave the matcha croissant or cronut for special occasions. When matcha is added to foods with high levels of added sugar, salt and saturated fat, any health benefits that could be attributed to the matcha may be negated.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/242775/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/matcha-is-having-a-moment-what-are-the-health-benefits-of-this-green-tea-drink-242775">original article</a>.

Food & Wine

The science of the ideal salad dressing

<a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a> Summer means salads. And salads are even more delicious with a good dressing. Most salad dressings are temporarily stable mixtures of oil and water known as emulsions. But how do salad dressing emulsions form? And how can we enhance our emulsions for better salads and more? <h2>Oil and water don’t mix</h2> It’s accepted wisdom that oil and water don’t mix. The water and oil molecules have distinct chemical properties that don’t interact well together. You may have seen this if you’ve attempted to make a salad dressing by shaking together oil and vinegar (which is mostly water), which gives a temporary suspension that quickly separates. There is a large energy cost to breaking apart and mixing the water and oil layers. The secret to blending them together is to add an extra ingredient known as a “surfactant” or emulsifier. The name surfactant is derived from “surface active”. It highlights that these molecules work at the surface or interface to bridge the interactions between the oil and water. This is similar to how <a href="https://theconversation.com/what-is-sodium-lauryl-sulfate-and-is-it-safe-to-use-125129">detergents</a> are able to remove grease from your dishes. Many vinaigrette recipes call for emulsifiers without specifically mentioning their crucial emulsifying role. Key examples are mustard and garlic, which contain “mucilage” – a mix of carbohydrates – that can act as emulsifiers. So if your vinegar/oil salad dressings are separating, make sure you’re adding enough of these ingredients (which also contain <a href="https://theconversation.com/hate-vegetables-you-might-have-super-taster-genes-74428">wonderful flavour chemicals</a>). Commercial salad dressings also contain naturally sourced emulsifying carbohydrates. These will often be listed on the ingredients as generic “vegetable gum” or similar, and you may need to <a href="https://theconversation.com/busting-the-myth-that-all-food-additives-are-bad-a-quick-guide-for-label-readers-82883">read the label</a> and delve a little deeper into the <a href="https://www.foodstandards.gov.au/consumer/additives/additiveoverview/Documents/Food%20Additive%20Code%20Numbers%20%28July%202014%29.pdf">food additive number</a> to find out the source. Researchers have raised questions about <a href="https://theconversation.com/food-additives-and-chronic-disease-risk-what-role-do-emulsifiers-play-38492">synthetic emulsifiers used in processed food</a>, as studies in mice suggest they have health risks. It’s too early to say exactly what this means for humans. <h2>Shake it ‘til you make it</h2> Mixing is key to dispersing oil in water. While shaking a jar is convenient, a whisk or food processor will give a more complete emulsion. The white (or opaque) colour of many emulsions is due to the formation of microdroplets that scatter light. These mechanical mixing methods are even more essential for the formation of so-called “permanent emulsions” such as mayonnaise. Mayonnaise is an emulsion of oil in water, but egg yolk is the key emulsifier. Egg yolks contain long molecules called <a href="https://link.springer.com/referenceworkentry/10.1007/978-3-642-36605-5_28">phospholipids</a> that are able to interact with both the oil layer and the water. Mayonnaise is an impressively stable emulsion, which is why is can be sold in a shelf-stable form. But it isn’t infinitely stable; heating the mayonnaise emulsion will cause it to split. Perhaps you’ve hurriedly prepared a potato salad and added a mayonnaise-based dressing before the potatoes have cooled down? Or toasted a sandwich spread with mayonnaise? (Incidentally, adding mayonnaise to the outside of a toasted sandwich is an excellent path to some <a href="https://theconversation.com/kitchen-science-from-sizzling-brisket-to-fresh-baked-bread-the-chemical-reaction-that-makes-our-favourite-foods-taste-so-good-58577">delicious and crispy chemical reactions</a>.) The heat destabilises the emulsion and the separate oil and water phases will reform. Depending on the mixture, split emulsions may be recovered by adding more emulsifier and re-whisking or re-mixing. Hollandaise sauce is a notoriously difficult emulsion to prepare. The traditional hollandaise method involves whisking egg yolk, water, and lemon juice over a low heat, then slowly adding melted butter with further whisking. Not only can the emulsion split, but you can also overcook the added emulsifying egg yolk. The key to a successful hollandaise emulsion is separating the butter into fine, dispersed droplets, giving a thick and opaque mixture, but without cooking the eggs. Adding the butter too quickly or without sufficient mixing can give a split sauce. Using an <a href="https://www.seriouseats.com/foolproof-2-minute-hollandaise-recipe">immersion blender</a> can help, as can controlling the temperature of the melted butter. You might get a more consistently emulsified sauce with far less strain on your wrists. <h2>You’ve got me feeling emulsions</h2> Emulsions are used in many more places than salads and sauces. Most medicated creams, cosmetics and lotions are emulsions of oils and water, which is why they look white. Gardeners might be familiar with a mixture known as “<a href="https://www.abc.net.au/gardening/how-to/horticultural-oils/9428876">white oil</a>” – a mixture of vegetable oil and detergent. This brew, when diluted in water, is an inexpensive, effective, yet mild insecticide. Commercial versions often contain other pesticides, so make sure you read the label. Modern <a href="https://www.acs.org/education/whatischemistry/landmarks/acrylicemulsion.html">acrylic paints use emulsions</a> for both their manufacturing and application. The emulsions suspend the paint polymers in a water base. The water from the paint evaporates, leaving a film of paint polymers that can’t be re-dispersed into water. This clever chemical trick has saved huge quantities of oil-derived solvents from being used, <a href="https://theconversation.com/why-solvents-can-affect-brain-health-even-at-low-levels-of-exposure-98081">inhaled</a>, and emitted into the environment from traditional oil-based paints. Modern vaccines use <a href="https://theconversation.com/adjuvants-the-unsung-heroes-of-vaccines-156548">emulsions to increase the immune systems response</a>. Other common emulsions are inks, <a href="https://theconversation.com/how-does-ice-cream-work-a-chemist-explains-why-you-cant-just-freeze-cream-and-expect-results-205038">ice cream</a>, margarine and hair products, to name just a few. So next time you’re making a salad, check your emulsions. Opposites don’t attract, but mixing them with the right chemistry can give a delicious result.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/216159/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/the-science-of-the-ideal-salad-dressing-216159">original article</a>.

Food & Wine

Nearly 200 chemicals linked to cancer found in everyday food packaging

A new study has uncovered the alarming amount of potential carcinogens in food packaging and plastic tableware. Researchers from the Food Packaging Forum found that nearly 200 chemicals linked to breast cancer are being used in food packaging, with dozens of these carcinogens able to find their way into the body. “There is strong evidence that 76 known or potential breast carcinogens from food contact materials recently purchased all over the world can be found in people,” study co-author Jane Muncke said. “Getting rid of these known or suspected carcinogens in our food supply is a huge opportunity for cancer prevention.” Muncke is managing director and chief scientific officer at the Food Packaging Forum, a non-profit foundation based in Zurich, Switzerland focusing on science communication and research. The study, published last month in the journal Frontiers In Toxicology, compared a list of potential breast carcinogens to a list of chemicals that have been found in food contact materials to find out which of the potential carcinogens could be getting into people's diets. Of the 189 potential mammary carcinogens in food contact materials, with 143 of these found in plastics and 89 found in paper or cardboard. Of the recently detected chemicals found in food packaging, 40 have already been classified as hazardous by regulatory agencies around the world. Another research scientist, Jenny Kay, from Silent Spring Institute an organisation focused on the link between chemicals, women's health, and breast cancer said: “So many of these chemicals have already been classified as human health hazards, yet they are still allowed to be used in food contact materials thus allowing them to migrate into the food we eat." Early-onset breast cancer rates in women younger than 50 have been increasing, and experts said the trend cannot be explained by genetics alone. “Many of the mammary carcinogens are hormone disruptors, too, and many of the chemicals on our list can also damage DNA," Kay said. “Consumers should not have to keep track of all of the scientific literature on what chemicals to avoid. It should be on regulators to recognise the danger and take action.” The Consumer Brands Association, which represents the consumer products industry, said its members adhered to the US Food and Drug Administration’s evidence-based safety standards. “Packaging exists to protect and keep food safe for consumption,” the association’s senior vice president of product policy and federal affairs Sarah Gallo told CNN. “The FDA reviews and approves food contact substances through their science and risk-based system before they go to market. “The agency’s post-market review also provides continuous safety analysis and regulation of the approved substances.” Image: Shutterstock

Body

How can I stop using food to cope with negative emotions?

<a href="https://theconversation.com/profiles/inge-gnatt-1425767">Inge Gnatt</a>, <a href="https://theconversation.com/institutions/swinburne-university-of-technology-767">Swinburne University of Technology</a> Have you ever noticed changes in your eating habits when you are sad, bored or anxious? Many people report eating either more, or less, as a way of helping them to cope when they experience difficult emotions. Although this is a very normal response, it can take the pleasure out of eating, and can become distressing and bring about other feelings of <a href="https://doi.org/10.1016/j.eatbeh.2018.02.008">shame and self-criticism</a>. Adding to the complexity of it all, we live in a world where <a href="https://butterfly.org.au/diet-culture-101/">diet culture</a> is unavoidable, and our relationship to eating, food and body image can become complicated and confusing. <h2>Emotional eating is common</h2> “Emotional eating” refers to the eating behaviours (typically eating more) that occur in response to difficult emotions. <a href="https://doi.org/10.3390/ijerph18041744">Research shows</a> around 20% of people regularly engage in emotional eating, with a higher prevalence <a href="https://doi.org/10.1371/journal.pone.0285446">among adolescents</a> and women. In a <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0285446#sec012">study</a> of more than 1,500 adolescents, 34% engaged in emotional eating while sad and 40% did so while anxious. Foods consumed are often fast-foods and other energy-dense, nutrient-poor convenience foods. <h2>Stress, strong emotions and depression</h2> For some people, emotional eating was simply a <a href="https://doi.org/10.1038/s41598-017-09519-0">habit formed earlier in life</a> that has persisted over time. But other factors might also contribute to the likelihood of emotional eating. The physiological effects of stress and strong emotions, for example, can influence hormones such as <a href="https://doi.org/10.1016/S0306-4530(00)00035-4">cortisol, insulin and glucose</a>, which can also increase appetite. Increased impulsivity (<a href="https://doi.org/10.1176/appi.ajp.158.11.1783">behaving</a> before thinking things through), vulnerability to depression, a tendency to ruminate and <a href="https://doi.org/10.1080/1047840X.2014.940781">difficulties regulating emotions</a> also <a href="https://doi.org/10.1097/FBP.0b013e328357bd4e">increase the likelihood</a> of emotional eating. <h2>So what do you do?</h2> First, know that fluctuations in eating are normal. However, if you find that the way you eat in response to difficult emotions is not working for you, there are a few things you can do. Starting with small things that are achievable but can have a huge impact, such as prioritising <a href="https://theconversation.com/no-sleep-challenge-the-dangers-of-sleep-deprivation-236608">getting enough sleep</a> and <a href="https://insideoutinstitute.org.au/podcasts/episode-3-the-mindful-dietitian-fiona-sutherland">eating regularly</a>. Then, you can start to think about how you handle your emotions and hunger cues. <h2>Expand your emotional awareness</h2> Often we label emotions as good or bad, and this can result in fear, avoidance, and <a href="https://youtu.be/NDQ1Mi5I4rg?si=lv9d8qjUThSsemXG">unhelpful coping strategies</a> such as emotional eating. But it’s also important to <a href="https://www.pspnet.ca/assets/the-gottman-institute-the-feeling-wheel-v2.pdf">differentiate</a> the exact emotion. This might be feeling isolated, powerless or victimised, rather than something as broad as sad. By <a href="https://headspace.org.au/online-and-phone-support/interactive-tools/activities/understanding-emotions/">noticing</a> what the emotion is, we can bring curiosity to what it means, how we feel in our minds and bodies, and how we think and behave in response. <h2>Tap into your feelings of hunger and fullness</h2> Developing an intuitive way of eating is another helpful strategy to promote <a href="https://insideoutinstitute.org.au/blog/what-is-normal-eating">healthy eating behaviours</a>. Intuitive eating means recognising, understanding and responding to internal signals of hunger and fullness. This might mean tuning in to and acknowledging physical hunger cues, responding by eating food that is nourishing and enjoyable, and identifying sensations of fullness. Intuitive eating <a href="https://doi.org/10.1002/eat.23509">encourages flexibility</a> and thinking about the pleasure we get from food and eating. This style of eating also allows us to enjoy eating out with friends, and sample local delicacies when travelling. It can also reduce the psychological distress from feeling out of control with your <a href="https://doi.org/10.1016/j.jand.2013.12.024">eating</a> habits and the associated negative <a href="https://doi.org/10.1016/j.appet.2015.10.012">body image</a>. <h2>When is it time to seek help?</h2> For some people, the thoughts and behaviours relating to food, eating and body image can negatively impact their life. Having the support of friends and family, accessing <a href="https://nedc.com.au/eating-disorder-resources/interactive-digital-resource-for-eating-disorders">online resources</a> and, in some instances, seeing a trained professional, can be very helpful. There are many <a href="https://doi.org/10.1007/s00787-020-01498-4">therapeutic interventions</a> that work to <a href="https://doi.org/10.1016/j.copsyc.2015.02.010">improve aspects</a> associated with emotional eating. These will depend on your situation, needs, stage of life and other factors, such as whether you are <a href="https://nedc.com.au/eating-disorders/types/neurodivergence">neurodivergent</a>. The best approach is to engage with someone who can bring compassion and understanding to your personal situation, and work with you collaboratively. This work might include: <ul> <li>unpacking some of the patterns that could be underlying these emotions, thoughts and behaviours</li> <li>helping you to discover your emotions</li> <li>supporting you to process other experiences, such as trauma exposure</li> <li>developing a more flexible and intuitive way of eating.</li> </ul> One of the dangers that can occur in response to emotional eating is the temptation to diet, which can lead to disordered eating, and eating disorder behaviours. Indicators of a potential <a href="https://nedc.com.au/eating-disorders/eating-disorders-explained/whats-an-eating-disorder">eating disorder</a> can include: <ul> <li>recent rapid weight loss</li> <li>preoccupation with weight and shape (which is usually in contrast to other people’s perceptions)</li> <li>eating large amounts of food within a short space of time (two hours or less) and feeling a sense of loss of control</li> <li>eating in secret</li> <li>compensating for food eaten (with vomiting, exercise or laxatives).</li> </ul> <a href="https://nedc.com.au/eating-disorders/treatment-and-recovery/treatment-options">Evidence-based approaches</a> can support people experiencing eating disorders. To find a health professional who is informed and specialises in this area, search the <a href="https://butterfly.org.au/get-support/butterflys-referral-database/">Butterfly Foundation’s expert database</a>. <hr /> If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14, or the <a href="https://butterfly.org.au/get-support/helpline/">Butterfly Foundation</a> on 1800 ED HOPE (1800 33 4673).<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/238218/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/inge-gnatt-1425767">Inge Gnatt</a>, PhD Candidate, Lecturer in Psychology, <a href="https://theconversation.com/institutions/swinburne-university-of-technology-767">Swinburne University of Technology</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-can-i-stop-using-food-to-cope-with-negative-emotions-238218">original article</a>.

Body

Airline bans couple after racist row over reclined seat

Two travellers have been banned from Cathay Pacific flights after an argument over seat etiquette descended into racist insults. The incident occurred on a flight from Hong Kong to London, with a woman documenting her experience in a video posted on Xiaohongshu, China's version of Instagram. The woman, from mainland China, explained, "The lady sitting behind me asked me to put my seat up because it was blocking her husband's view of the TV. I politely declined, and she started stretching her feet onto my armrest, kicking my arm and cursing at me like crazy." A flight attendant stepped in to find a solution to the issue, but when the woman continued to refuse to put her chair up, the situation only escalated. "When (the female passenger) realised my Cantonese wasn't so great, she started throwing around some nasty comments, calling me a 'Mainland girl' and other derogatory stuff," the woman said, explaining how people from Hong Kong speak mainly Cantonese, whereas mainland Chinese mainly speak Mandarin. "Once I started recording, the husband behind me even shoved his hand on my armrest and started shaking it like crazy. I felt my personal space had been completely violated," added the woman, who said other passengers then intervened. In footage of the incident uploaded by the woman, a female voice can be heard saying in Mandarin: "You're old enough — why are you bullying a young girl?" And others can be heard shouting in Cantonese: "You're embarrassing us Hongkongers!" "After some passengers spoke up for me, the flight attendant finally said I could switch seats. I felt it was absurd—what if no one had backed me up? Would I have just been left to deal with it on my own?" the passenger said. "As a major airline, isn't Cathay supposed to know how to handle such disputes? Shouldn't treating passengers differently get some consequences? In a statement released Saturday, Cathay Pacific said it wanted to "sincerely apologise" for the "unpleasant experience," with the airline saying, "We maintain a zero-tolerance policy for any behaviour that violates aviation safety regulations or disrespects the rights of other customers." "We will deny future travel on any Cathay Group flights to the two customers involved in this incident." Image credits: Shutterstock

Travel Trouble

MSG is back. Is the idea it’s bad for us just a myth or food science?

<a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> MSG is making a comeback. The internet’s favourite cucumber salad recipe includes fish sauce, cucumber, garlic and – as the video’s creator Logan tells us with a generous sprinkle from the bag – “MSG, obviously”. But for many of us, it’s not obvious. Do you have a vague sense MSG is unhealthy but you’re not sure why? Here is the science behind monosodium glutamate, how it got a bad rap, and whether you should add it to your cooking. <h2>What is MSG?</h2> Monosodium glutamate (MSG) is a sodium salt of glutamic acid, one of the amino acids that make up proteins. It occurs naturally in <a href="https://www.tandfonline.com/doi/full/10.1080/10942912.2017.1295260#d1e167">foods</a> such as mature cheeses, fish, beef, mushrooms, tomatoes, onion and garlic. It provides their savoury and “meaty” flavour, known as <a href="https://www.sciencedirect.com/science/article/pii/S0022316622140186">umami</a>. MSG has been used to season food for <a href="https://wjpsonline.com/index.php/wjps/article/view/effects-monosodium-glutamate-human-health-review">more than 100 years</a>. Traditionally it <a href="https://pubs.acs.org/doi/epdf/10.1021/ed081p347?ref=article_openPDF">was extracted</a> from seaweed broth, but now it’s made by fermenting starch in sugar beets, sugar cane and molasses. Today it’s widely used as a flavour enhancer in many dishes and pre-packaged goods, including soups, condiments and processed meats. There is no chemical difference between the MSG found in food and the additive. <h2>Is it safe?</h2> For most people, yes. MSG is a safe and authorised additive, according to the Australian agency that regulates food. This corresponds with food standards in the <a href="https://www.fda.gov/food/food-additives-petitions/questions-and-answers-monosodium-glutamate-msg">United States</a>, <a href="https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02008R1333-20201223#tocId3">European Union and United Kingdom</a>. Two major <a href="https://www.foodstandards.gov.au/sites/default/files/consumer/additives/msg/Documents/MSG%20Technical%20Report.pdf">safety reviews</a> have been conducted: one in 1987 by a United Nations expert committee and another 1995 by the Federation of American Societies for Experimental Biology. Both concluded MSG was safe for the general population. In 2017 the <a href="https://www.efsa.europa.eu/en/efsajournal/pub/4910">European Food Safety Authority</a> updated its stance and set a recommended limit based on body weight, aimed to prevent headaches and increased blood pressure. That limit is still higher than most people consume. The authority says an 80kg person should not have more than 2.4g of added MSG per day. <a href="https://www.nature.com/articles/1602526">For reference</a>, Europeans average less than a gram per day (0.3-1 gram), while in Asia intake is somewhere between 1.2-1.7 grams a day. Food Standards Australia New Zealand says the European update does not raise any new safety concerns not already assessed. <h2>Isn’t it bad for me?</h2> Despite the evidence, the idea MSG is dangerous persists. Its notorious reputation can be traced back to a <a href="https://news.colgate.edu/magazine/2019/02/06/the-strange-case-of-dr-ho-man-kwok/">hoax letter</a> published in the <a href="https://www.nejm.org/doi/full/10.1056/NEJM196805162782014">New England Journal of Medicine</a> in 1968. A doctor claiming to have experienced palpitations, numbness and fatigue after eating at a Chinese restaurant suggested MSG could be to blame. With a follow-up article in the <a href="https://www.nytimes.com/1968/05/19/archives/-chinese-restaurant-syndrome-puzzles-doctors.html">New York Times</a>, the idea of “Chinese Restaurant Syndrome” took off. Eating MSG was associated with a range of symptoms, including headache, hives, throat swelling, itching and belly pain. However an <a href="https://www.sciencedirect.com/science/article/pii/027869159390012N?via%3Dihub">early randomised control trial</a> showed no difference in these symptoms between people who were given MSG versus a placebo. This has since been confirmed in a <a href="https://ift.onlinelibrary.wiley.com/doi/full/10.1111/1541-4337.12448">review of many studies</a>. <h2>Can MSG cause reactions?</h2> A very small percentage of people may have hypersensitivities to MSG. The reported reaction is now known as MSG symptom complex, rather than so-called Chinese restaurant syndrome, with its <a href="https://www.jandonline.org/article/S2212-2672(21)00068-X/abstract#:%7E:text=A%20New%20York%20Times%20piece,connecting%20MSG%20to%20health%20outcomes.">problematic</a> racial connotations. Symptoms are usually mild, short-term and don’t need treatment. <a href="https://www.sciencedirect.com/science/article/pii/S0091674999703714">One study</a> looked at 100 people with asthma, 30 of whom believed they had hypersensitivities to MSG. However when participants were blinded to whether they were consuming MSG, not one reported a reaction. If you believe you do react to added MSG, it’s relatively easy to avoid. In Australia, it is <a href="https://www.foodstandards.gov.au/consumer/additives/msg">listed</a> in ingredients as either monosodium glutamate or flavour enhancer 621. <h2>Is it better than table salt?</h2> Using MSG instead of regular salt may help <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6893472/">reduce</a> your overall sodium intake, as MSG <a href="https://www.medicalnewstoday.com/articles/msg-what-the-science-says-about-its-safety#Uses-of-MSG">contains</a> about one third the amount of sodium. <a href="https://pubmed.ncbi.nlm.nih.gov/21372742/">One study</a> found people who ate soup seasoned with MSG rather than salt actually liked it more. They still found it salty to taste, but their sodium intake was reduced by 18%. MSG still contains sodium, so high use is associated with increased <a href="https://pubmed.ncbi.nlm.nih.gov/21372742/">blood pressure</a>. If you’re using MSG as a substitute and you have high blood pressure, you should closely monitor it (just as you would with other salt products). <h2>Should I use MSG in my cooking?</h2> If you want to – yes. Unless you are one of the rare people with hypersensitivities, enhancing the flavour of your dish with a sprinkle of MSG will not cause any health problems. It could even help reduce how much salt you use. If you’re <a href="https://www.tandfonline.com/doi/full/10.1080/25765299.2020.1807084#d1e199">vegetarian or vegan</a>, cooking with MSG could help add the umami flavour you may miss from animal products such as meat, fish sauce and cheese. But buying foods with added MSG? Be aware, many of them will also be <a href="https://www.cambridge.org/core/journals/public-health-nutrition/article/un-decade-of-nutrition-the-nova-food-classification-and-the-trouble-with-ultraprocessing/2A9776922A28F8F757BDA32C3266AC2A">ultra-processed</a> and it’s that – not the MSG – that’s associated with poor physical and mental <a href="https://www.mdpi.com/2072-6643/14/1/174">health outcomes</a>.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237871/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/msg-is-back-is-the-idea-its-bad-for-us-just-a-myth-or-food-science-237871">original article</a>.

Food & Wine

What causes food cravings? And what can we do about them?

<a href="https://theconversation.com/profiles/gabrielle-weidemann-91497">Gabrielle Weidemann</a>, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a> and <a href="https://theconversation.com/profiles/justin-mahlberg-1634725">Justin Mahlberg</a>, <a href="https://theconversation.com/institutions/monash-university-1065">Monash University</a> Many of us try to eat more fruits and vegetables and less ultra-processed food. But why is sticking to your goals so hard? High-fat, sugar-rich and salty foods are simply so enjoyable to eat. And it’s not just you – we’ve evolved that way. These foods <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5928395/">activate</a> the brain’s reward system because in the past they were <a href="https://doi.org/10.1037/a0030684">rare</a>. Now, they’re all around us. In wealthy modern societies we are bombarded by <a href="https://theconversation.com/junk-food-is-promoted-online-to-appeal-to-kids-and-target-young-men-our-study-shows-234285">advertising</a> which intentionally reminds us about the sight, smell and taste of calorie-dense foods. And in response to these powerful cues, our brains respond just as they’re designed to, triggering <a href="https://doi.org/10.1111/obr.12354">an intense urge</a> to eat them. Here’s how food cravings work and what you can do if you find yourself hunting for sweet or salty foods. <h2>What causes cravings?</h2> A food craving is an intense desire or urge to eat something, <a href="https://pubmed.ncbi.nlm.nih.gov/15589112/">often focused on a particular food</a>. We are programmed to learn how good a food tastes and smells and where we can find it again, especially if it’s high in fat, sugar or salt. Something that <a href="https://doi.org/10.1111/obr.12354">reminds us</a> of enjoying a certain food, such as an eye-catching ad or delicious smell, can cause us to <a href="https://doi.org/10.1111/obr.12354">crave it</a>. The cue triggers a physical response, increasing saliva production and gastric activity. These responses are relatively automatic and difficult to control. <h2>What else influences our choices?</h2> While the effect of cues on our physical response is relatively automatic, what we do next is influenced by <a href="https://journals.sagepub.com/doi/pdf/10.1177/1090198107303308">complex</a> factors. Whether or not you eat the food might depend on things like cost, whether it’s easily available, and if eating it would align with your health goals. But it’s usually hard to keep healthy eating in mind. This is because we tend to prioritise a more immediate reward, like the <a href="https://doi.org/10.1016/j.physbeh.2010.04.029">pleasure of eating</a>, over one that’s delayed or abstract – including health goals that will make us feel good in the long term. <a href="https://doi.org/10.1016/S0022-3999(00)00076-3">Stress</a> can also make us eat more. When hungry, we <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8656885/">choose larger portions</a>, underestimate calories and find eating more <a href="https://www.sciencedirect.com/science/article/pii/S0195666315000793">rewarding</a>. <h2>Looking for something salty or sweet</h2> So what if a cue prompts us to look for a certain food, but it’s not available? <a href="https://doi.org/10.1016/j.appet.2014.04.005">Previous research</a> suggested you would then look for anything that makes you feel good. So if you saw someone eating a doughnut but there were none around, you might eat chips or even drink alcohol. But our <a href="https://doi.org/10.1016/j.appet.2024.107640">new research</a> has confirmed something you probably knew: it’s more specific than that. If an ad for chips makes you look for food, it’s likely a slice of cake won’t cut it – you’ll be looking for something salty. Cues in our environment don’t just make us crave food generally, they prompt us to look for certain food “categories”, such as salty, sweet or creamy. <h2>Food cues and mindless eating</h2> Your <a href="https://core.ac.uk/download/pdf/161283824.pdf">eating history</a> and <a href="https://doi.org/10.1002/eat.24179">genetics</a> can also make it harder to suppress food cravings. But don’t beat yourself up – relying on willpower alone is <a href="https://doi.org/10.1016/j.appet.2015.01.004">hard</a> for almost everyone. Food cues are so powerful they can prompt us to <a href="https://doi.org/10.1177/0956797613484043">seek</a> out a certain food, even if we’re not overcome by a particularly <a href="https://doi.org/10.1177/0956797613484043">strong urge</a> to eat it. The effect is more intense if the food is easily available. This helps explain why we can eat an entire large bag of chips that’s in front of us, even though our pleasure decreases as we <a href="https://doi.org/10.1016/0031-9384(81)90310-3">eat</a>. Sometimes we use finishing the packet as the signal to stop <a href="https://doi.org/10.1016/j.physbeh.2015.03.025">eating</a> rather than hunger or desire. <h2>Is there anything I can do to resist cravings?</h2> We largely don’t have control over cues in our environment and the cravings they trigger. But there are some ways you can try and control the situations you make food choices in. <ul> <li> Acknowledge your craving and think about a healthier way to satisfy it. For example, if you’re craving chips, could you have lightly-salted nuts instead? If you want something sweet, you could try fruit. </li> <li> Avoid shopping when you’re hungry, and make a list beforehand. Making the most of supermarket “click and collect” or delivery options can also help avoid ads and impulse buys in the aisle. </li> <li> At home, have fruit and vegetables easily available – and easy to see. Also have other nutrient dense, fibre-rich and unprocessed foods on hand such as nuts or plain yoghurt. If you can, remove high-fat, sugar-rich and salty foods from your environment. </li> <li> Make sure your goals for eating are <a href="https://www.aafp.org/pubs/fpm/issues/2018/0300/p31.html">SMART</a>. This means they are specific, measurable, achievable, relevant and time-bound. </li> <li> Be kind to yourself. Don’t beat yourself up if you eat something that doesn’t meet your health goals. Just keep on trying.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237035/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> </li> </ul> <a href="https://theconversation.com/profiles/gabrielle-weidemann-91497">Gabrielle Weidemann</a>, Associate Professor in Psychological Science, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a> and <a href="https://theconversation.com/profiles/justin-mahlberg-1634725">Justin Mahlberg</a>, Research Fellow, Pyschology, <a href="https://theconversation.com/institutions/monash-university-1065">Monash University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/what-causes-food-cravings-and-what-can-we-do-about-them-237035">original article</a>.

Food & Wine

Why do I need to take some medicines with food?

<a href="https://theconversation.com/profiles/mary-bushell-919262">Mary Bushell</a>, <a href="https://theconversation.com/institutions/university-of-canberra-865">University of Canberra</a> Have you ever been instructed to take your medicine with food and wondered why? Perhaps you’ve wondered if you really need to? There are varied reasons, and sometimes complex science and chemistry, behind why you may be advised to take a medicine with food. To complicate matters, some similar medicines need to be taken differently. The antibiotic amoxicillin with clavulanic acid (sold as Amoxil Duo Forte), for example, is recommended to be taken with food, while amoxicillin alone (sold as Amoxil), can be taken with or without food. Different brands of the same medicine may also have different recommendations when it comes to taking it with food. <h2>Food impacts drug absorption</h2> Food can affect how fast and how much a drug is absorbed into the body in up to <a href="https://academic.oup.com/jpp/article-abstract/71/4/510/6122024?login=false">40% of medicines</a> taken orally. When you have food in your stomach, the makeup of the digestive juices change. This includes things like the fluid volume, thickness, pH (which becomes less acidic with food), surface tension, movement and how much salt is in your bile. These changes can impair or enhance drug absorption. Eating a meal also delays how fast the contents of the stomach move into the small intestine – this is known as <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9505616/">gastric emptying</a>. The small intestine has a large surface area and rich blood supply – and this is the primary site of drug absorption. Eating a larger meal, or one with lots of fibre, delays gastric emptying more than a smaller meal. Sometimes, health professionals will advise you to take a medicine with food, to help your body absorb the drug more slowly. But if a drug can be taken with or without food – such as paracetamol – and you want it to work faster, take it on an empty stomach. <h2>Food can make medicines more tolerable</h2> Have you ever taken a medicine on an empty stomach and felt nauseated soon after? Some medicines can cause stomach upsets. Metformin, for example, is a drug that reduces blood glucose and treats type 2 diabetes and polycystic ovary syndrome. It commonly causes gastrointestinal symptoms, with <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4452716/">one in four users affected</a>. To combat these side effects, it is generally recommended to be taken with food. The same <a href="https://amhonline.amh.net.au/auth">advice</a> is given for corticosteroids (such as prednisolone/prednisone) and certain antibiotics (such as doxycycline). Taking some medicines with food makes them more tolerable and improves the chance you’ll take it for the duration it’s prescribed. <h2>Can food make medicines safer?</h2> Ibuprofen is one of the most widely used over-the-counter medicines, with around one in five Australians reporting use <a href="https://www.abs.gov.au/statistics/health/health-conditions-and-risks/medications/latest-release">within a two-week period</a>. While effective for pain and inflammation, ibuprofen can impact the stomach by inhibiting protective prostaglandins, increasing the risk of <a href="https://www.tandfonline.com/doi/full/10.1586/14737175.6.11.1643#d1e212">bleeding, ulceration and perforation</a> with long-term use. But there <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4574824/">isn’t enough research</a> to show taking ibuprofen with food reduces this risk. Prolonged use may also affect kidney function, particularly in those with pre-existing conditions or dehydration. The <a href="https://amhonline.amh.net.au/auth">Australian Medicines Handbook</a>, which guides prescribers about medicine usage and dosage, advises taking ibuprofen (sold as Nurofen and Advil) with a glass of water – or with a meal if it upsets your stomach. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4574824/">A systematic review published in 2015</a> found food delays the transit of ibuprofen to the small intestine and absorption, which delays therapeutic effect and the time before pain relief. It also found taking short courses of ibuprofen without food reduced the need for additional doses. To reduce the risk of ibuprofen causing damage to your stomach or kidneys, use the lowest effective dose for the shortest duration, stay hydrated and avoid taking other <a href="https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/medications-non-steroidal-anti-inflammatory-drugs">non-steroidal anti-inflammatory medicines</a> at the same time. For people who use ibuprofen for prolonged periods and are at higher risk of gastrointestinal side effects (such as people with a history of ulcers or older adults), your prescriber may start you on a <a href="https://australianprescriber.tg.org.au/articles/peptic-ulcer-disease-and-non-steroidal-anti-inflammatory-drugs.html">proton pump inhibitor</a>, a medicine that reduces stomach acid and protects the stomach lining. <h2>How much food do you need?</h2> When you need to take a medicine with food, how much is enough? Sometimes a full glass of milk or a couple of crackers may be enough, for medicines such as prednisone/prednisolone. However, most head-to-head studies that compare the effects of a medicine “with food” and without, usually use a heavy meal to define “with food”. So, a cracker may not be enough, particularly for those with a sensitive stomach. A more substantial meal that includes a mix of fat, protein and carbohydrates is generally advised. Your health professional can advise you on which of your medicines need to be taken with food and how they interact with your digestive system.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/235782/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/mary-bushell-919262">Mary Bushell</a>, Clinical Associate Professor in Pharmacy, <a href="https://theconversation.com/institutions/university-of-canberra-865">University of Canberra</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/why-do-i-need-to-take-some-medicines-with-food-235782">original article</a>.

Body

Pay-by-weight airfares are an ethical minefield. We asked travellers what they actually think

<a href="https://theconversation.com/profiles/denis-tolkach-11345">Denis Tolkach</a>, <a href="https://theconversation.com/institutions/james-cook-university-1167">James Cook University</a> and <a href="https://theconversation.com/profiles/stephen-pratt-335188">Stephen Pratt</a>, <a href="https://theconversation.com/institutions/university-of-central-florida-1925">University of Central Florida</a> Imagine checking in for a flight with your two teenage children. At the counter, you are told that your youngest teenager’s suitcase is two kilograms over the limit. You get slapped with a $75 penalty for their excess luggage. This penalty feels arbitrary and unfair. The youngest weighs about 45 kg, and their luggage weighs 25 kg, making their total payload on the flight 70 kg. Their older sibling, on the other hand, weighs 65 kg, and has brought 23 kg of luggage to check in. Their total weight is higher – 88 kg – yet they receive no penalty. Obviously, things aren’t that simple. Charging passengers based on their weight is highly controversial for many reasons. But that hasn’t stopped some airlines <a href="https://theweek.com/articles/466035/should-airlines-charge-passengers-by-weight">experimenting</a> with such policies. Imagine checking in for your flight only to have the staff tell you to <a href="https://edition.cnn.com/travel/article/plus-size-travelers-slam-airline-seat-policies/index.html">purchase an extra seat</a> as you are a plus-size passenger. You feel discriminated against because you are using the same service as other passengers and your weight is beyond your control. But despite the lived experience of many and hot debate in the media, there has not been a formal study into what passengers themselves think about this matter. Our recently published <a href="https://doi.org/10.1002/jtr.2691">research</a> examined air passengers’ views on alternative airfare policies to understand whether the public finds them acceptable and what ethical considerations determine their views. Though we found a range of ethical contradictions, most travellers were guided by self-interest. <h2>A controversial but important topic</h2> The issue of whether airlines should weigh passengers is an ethical minefield with no easy answers. Despite its sensitivity, the aviation industry can’t ignore passenger weight. Airlines intermittently undertake <a href="https://www.forbes.com/sites/marisagarcia/2024/02/11/despite-backlash-heres-why-airlines-need-to-weigh-passengers/?sh=5f07623e1bfa">passenger weight surveys</a> as they need to accurately calculate payload to ensure flight safety and estimate fuel consumption. The evidence shows passengers are <a href="https://www.forbes.com/sites/marisagarcia/2024/02/11/despite-backlash-heres-why-airlines-need-to-weigh-passengers/?sh=5f07623e1bfa">getting heavier</a>. Airlines including the now-defunct <a href="https://theweek.com/articles/466035/should-airlines-charge-passengers-by-weight">Samoa Air</a> and <a href="https://www.theguardian.com/us-news/2016/oct/23/hawaiian-airlines-american-samoa-weight-passengers">Hawaiian Airlines</a> have taken things one step further and experimented with weighing passengers regularly. Samoa Air, for example, became the first airline to introduce a “pay-as-you-weigh” policy, where the cost of your ticket was directly proportional to the combined weight of you and your luggage. In contrast, Canada has now long had a “<a href="https://otc-cta.gc.ca/eng/publication/additional-seating-and-one-person-one-fare-requirement-domestic-travel-a-guide">one person, one fare</a>” policy. It is prohibited and deemed discriminatory to force passengers living with a disability to purchase a second seat for themselves if they require one, including those with functional disability due to obesity. To complicate matters further, the issue of passenger and luggage weight is not only ethical and financial, but also environmental. More weight on an aircraft leads to more jet fuel being burned and more carbon emissions. About <a href="https://www.nature.com/articles/s41467-021-24091-y">5%</a> of human-driven climate change can be attributed to aviation, and the industry faces enormous pressure to reduce fuel consumption while it waits for low carbon substitutes to become available. <h2>What do passengers actually think?</h2> To get a better sense of how the public actually feels about this issue, we surveyed 1,012 US travellers of different weights, presenting them with three alternatives: <ul> <li>standard policy – currently the most widely used policy with passengers paying a standard price, irrespective of their weight</li> <li>threshold policy – passengers are penalised if they are over a threshold weight</li> <li>unit of body weight policy – passengers pay a personalised price based on their own body weight, per each pound.</li> </ul> The standard policy was the most acceptable for participants of differing weight, although the heavier the passenger, the more they preferred the standard policy. This can be partially explained by status quo bias. Generally, people are likely to choose a familiar answer. The threshold policy was the least acceptable. This policy was seen to violate established social norms and be generally less fair. The unit of body weight policy was preferred to the threshold policy, although participants raised concerns about whether it would be accepted by society. Perhaps unsurprisingly, we found that self-interest played a clear role in determining whether respondents considered a policy acceptable. Younger, male, financially well-off travellers with lower personal weight generally found the alternative policies more acceptable. <h2>An ethical conflict</h2> Alternative airfare policies that are based on passenger weight bring environmental and ethical concerns into conflict. Obviously, the effect isn’t from any one traveller, in particular, but averages over the entire industry. Interestingly, respondents that were more concerned about the environment – “ecocentric” – preferred air fare policies that would reduce the carbon emissions. This made them more open to the controversial alternatives. While the threshold policy was clearly rejected by many respondents as discriminatory, environmental concern played a role in the level of acceptance of the unit of body weight policy. It’s important to apply a critical lens here. These ecocentric travellers were also generally younger and had lower personal weights, so many would benefit from the alternative policies financially. For policymakers overall, our study suggests when it comes to controversial ticketing policies, the public is more likely to be swayed by self-interest than anything else.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237856/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/denis-tolkach-11345">Denis Tolkach</a>, Senior Lecturer, <a href="https://theconversation.com/institutions/james-cook-university-1167">James Cook University</a> and <a href="https://theconversation.com/profiles/stephen-pratt-335188">Stephen Pratt</a>, Professor, <a href="https://theconversation.com/institutions/university-of-central-florida-1925">University of Central Florida</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/pay-by-weight-airfares-are-an-ethical-minefield-we-asked-travellers-what-they-actually-think-237856">original article</a>.

Travel Trouble

Beloved teddy bear left in airport lounge rescued by airline

Staff at British Airways have rescued a child’s stuffed teddy bear that was left behind in an airport lounge, documenting the toy’s safe journey home. The treasured teddy was found in the British Airways lounge at London’s Heathrow Airport by nine-year-old Alex, who accidentally left the toy behind before boarding a flight home to Dubai. After staff found the stranded toy, a new flight and boarding pass was created for Postman Bear, while members of the BA team gave the teddy the”'VIP treatment” with a journey on an airport buggy to “catch up” with the Cabin Crew Operations team in the Crew Report Centre. Postman Bear was then taken to meet the cabin crew on his new flight to Dubai and was pictured “patiently” waiting for his flight at the gate, drinking a cup of coffee and enjoying “some great views of the aircraft” while waiting to board. The teddy’s journey home was lovingly captured by British Airways customer manager, Ed Tumath, who sent the snaps back to young Alex to assure him his beloved bear was being looked after. After touching down in Dubai, the cabin crew took Postman Bear to reunite with Alex and the rest of his family for a “bear-y happy reunion”. Stuart, Alex's parent, recalled the moment they knew the teddy was missing, while praising British Airways for their tireless journey to reunite Alex with his bear. Stuart said, “My son had left his teddy bear - huge sentimental value as he has had the teddy since birth - in the British Airways lounge ahead of the flight. We noticed as the aircraft doors were closing so nothing could be done at that point.” “This was very distressing to my son who uses the teddy as a calming item, especially when flying. This was incredibly stressful and we feared that his beloved teddy may be lost forever.” “Whilst onboard the flight, I took to a series of Facebook groups to seek help in finding the teddy. A member of the group contacted Ed who came to the rescue. I managed to communicate with Ed on the flight and received a picture showing that the teddy had been found, which calmed my son.” “Not only did Ed go out of his way to find the teddy but he communicated so well throughout. He genuinely cared about the situation and worked so hard to get the teddy back to us.” “He arranged for the teddy to board a flight to Dubai a couple of days later and a crew member handed the teddy back to us. Not only did Ed excel in his caring manner and communication, he even provided a few pictures of the teddy's journey, which my son will treasure forever.” “My son was so relieved - words could not express how grateful we are to Ed for his kind act and dedication to getting the teddy back to us. I have been flying with BA for many years - this is the best experience I have had by far and I am overwhelmed by Ed's efforts.” “Sometimes amazing people do incredible things and show such kindness along the way... these things matter. This meant a huge amount to my family and I, and we will be forever grateful.” Image credits: British Airways

International Travel

Thinking of trying a new diet? 4 questions to ask yourself before you do

<a href="https://theconversation.com/profiles/melissa-eaton-1522868">Melissa Eaton</a>, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a>; <a href="https://theconversation.com/profiles/verena-vaiciurgis-1647095">Verena Vaiciurgis</a>, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a>, and <a href="https://theconversation.com/profiles/yasmine-probst-235268">Yasmine Probst</a>, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a> We live in a society that glorifies dieting, with around <a href="https://doi.org/10.1111%2Fobr.12466">42% of adults globally</a> having tried to lose weight. Messages about <a href="https://doi.org/10.2196/38245">dieting and weight loss</a> are amplified on social media, with a never-ending cycle of weight loss fads and diet trends. Amid often conflicting messages and misinformation, if you’re looking for diet advice online, it’s easy to become confused and overwhelmed. So before diving into the latest weight loss trend or extreme diet, consider these four questions to help you make a more informed decision. <h2>1. Is the diet realistic?</h2> Have you considered the financial cost of maintaining the diet or lifestyle, and the time and resources that would be required? For example, do you need to purchase specific products, supplements, or follow a rigid meal plan? If the diet is coming from someone who is trying to sell you something – such as a particular weight-loss product you need in order to follow the diet – this could be a particular red flag. Many extreme diet recommendations come from a place of privilege and overlook food access, affordability, cooking skills, where you live, or even your culture and ethics. If the diet has these sorts of issues it can lead to <a href="https://doi.org/10.1017/S1368980024000132">frustration, stress, stigmatisation</a> and feelings of failure for the person trying to adhere to the diet. But the problem may be with the diet itself – not with you. <h2>2. Is there evidence to support this diet?</h2> Self-proclaimed “experts” online will often make claims focused on specific groups, known as <a href="https://doi.org/10.4103%2F0972-6748.77642">target populations</a>. This might be 30- to 50-year-old men with diabetes, for example. In some cases, evidence for claims made may come from animal studies, which might not be applicable to humans at all. So be aware that if research findings are for a group that doesn’t match your profile, then the results might not be relevant to you. It takes time and a lot of high-quality studies to tell us a “diet” is safe and effective, not just one study. Ask yourself, is it supported by multiple studies in humans? Be critical and question the claims before you accept them. For accurate information look for government websites, or ask your GP or dietitian. <h2>3. How will this diet affect my life?</h2> Food is much more than calories and nutrients. It plays many roles in our lives, and likewise diets can influence our lives in ways we often overlook. Socially and culturally, food can be a point of <a href="https://doi.org/10.1017/S1368980024000132">connection and celebration</a>. It can be a source of enjoyment, a <a href="https://doi.org/10.1016/j.jbusres.2018.12.024">source of</a> comfort, or even a way to explore new parts of the world. So when you’re considering a new diet, think about how it might affect meaningful moments for you. For example, if you’re going travelling, will your diet influence the food choices you make? Will you feel that you can’t sample the local cuisine? Or would you be deterred from going out for dinner with friends because of their choice of restaurant? <h2>4. Will this diet make me feel guilty or affect my mental health?</h2> What is your favourite meal? Does this diet “allow” you to eat it? Imagine visiting your mum who has prepared your favourite childhood meal. How will the diet affect your feelings about these special foods? Will it cause you to feel stressed or guilty about enjoying a birthday cake or a meal cooked by a loved one? Studies have shown that dieting can negatively impact our <a href="https://doi.org/10.1007%2FBF03405201">mental health</a>, and skipping meals can increase symptoms of <a href="https://doi.org/10.1016/j.jagp.2020.01.160">depression and anxiety</a>. Many diets fail to consider the psychological aspects of eating, even though our mental health is just as important as physical health. Eating should not make you feel stressed, anxious, or guilty. So before starting another diet, consider how it might affect your mental health. <h2>Moving away from a dieting mindset</h2> We’re frequently told that weight loss is the path to better health. Whereas, we can prioritise our health without focusing on our weight. Constant messages about the need to lose weight can also be harmful to mental health, and not necessarily helpful for <a href="https://doi.org/10.1152/ajpregu.00755.2010">physical health</a>. Our research has found eating in a way that prioritises health over weight loss is linked to a range of <a href="https://doi.org/10.1016/j.appet.2024.107361">positive outcomes</a> for our health and wellbeing. These include a more <a href="https://books.google.com.au/books?hl=en&lr=&id=IuZzDgAAQBAJ&oi=fnd&pg=PT9&dq=%22relationship+with+food%22&ots=e-NxLzUIFF&sig=s7p6_SijfgZE6Odx7ztV4xXPGp8&redir_esc=y#v=onepage&q=%22relationship%20with%20food%22&f=false">positive relationship</a> with food, and less guilt and stress. Our research also indicates <a href="https://doi.org/10.1016/j.appet.2024.107361">mindful and intuitive eating</a> practices – which focus on internal cues, body trust, and being present and mindful when eating – are related to lower levels of depression and stress, and greater body image and self-compassion. But like anything, it takes practice and time to build a positive relationship with food. Be kind to yourself, seek out <a href="https://www.sizeinclusivehealth.org.au/find-a-provider">weight-inclusive</a> health-care professionals, and the changes will come. Finally, remember you’re allowed to find joy in food.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237766/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/melissa-eaton-1522868">Melissa Eaton</a>, Accredited Practising Dietitian; PhD Candidate, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a>; <a href="https://theconversation.com/profiles/verena-vaiciurgis-1647095">Verena Vaiciurgis</a>, Accredited Practising Dietitian; PhD Candidate, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a>, and <a href="https://theconversation.com/profiles/yasmine-probst-235268">Yasmine Probst</a>, Associate Professor, School of Medical, Indigenous and Health Sciences, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/thinking-of-trying-a-new-diet-4-questions-to-ask-yourself-before-you-do-237766">original article</a>.

Body

Readers response: What airline will you always prefer to travel with?

When it comes to travelling, many people have their preferences of their favourite airline after past good experiences. Many seasoned travellers always opt to fly with their preferred airline (when it's possible), instead of running the risk of an uncomfortable experience. We asked our readers which airline they will always prefer to travel with, and the response was overwhelming. Here's what they said. Irene Hood - Singapore Airlines. Lovely cabin crew, smooth flights every time. David Slattery - Had quite a few nice flights with Turkish, both short and long haul. Sue Packer - Just came back from Europe with Emirates, great service, great food and the plane left on time! Rick Kehoe - Qantas if available. I have never had a bad flight experience after many flights both domestic and international. Anita Thornton - Finnair is a great airline! Diane Green - For overseas travel, Japan airlines gave the best service. For domestic, Virgin. George Jan Cafcakis - Qatar! It’s definitely the best. Russell Campbell - Singapore, but I just travelled on Vietnam Airlines and they were also good. Goldie Kilford - Air New Zealand for sure. Peter King - Safety: Qantas. Service: Qatar. On time: Lufthansa & Swiss. Friendly Crews: Fiji Air and Air New Zealand. Best Cattle Class Seat Pitches: All Nippon, Korean, Japan. Worst Airline: Jetstar! Image credits: Shutterstock

Travel Tips

Is still water better for you than sparkling water?

<a href="https://theconversation.com/profiles/christian-moro-121754">Christian Moro</a>, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a> and <a href="https://theconversation.com/profiles/charlotte-phelps-1187658">Charlotte Phelps</a>, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a> Still or sparkling? It’s a question you’ll commonly hear in a café or restaurant and you probably have a preference. But is there any difference for your health? If you love the fizz, here’s why you don’t have to pass on the sparkling water. <h2>What makes my water sparkle?</h2> This article specifically focuses on comparing still filtered water to carbonated filtered water (called “sparkling water” or “unflavoured seltzer”). Soda water, mineral water, tonic water and flavoured water are similar, but not the same product. The bubbles in sparkling water are created by adding carbon dioxide to filtered water. It reacts to produce carbonic acid, which makes sparkling water more acidic (a pH of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5747581/">about 3.5</a>) than still (closer to neutral, with a pH around 6.5-8.5). <h2>Which drink is healthiest?</h2> Water is the best way to hydrate our bodies. Research shows when it comes to <a href="https://pubmed.ncbi.nlm.nih.gov/26702122/">hydration</a>, still and sparkling water are <a href="https://www.jstage.jst.go.jp/article/jnsv/58/5/58_333/_article">equally effective</a>. Some people believe water is healthier when it comes from a sealed bottle. But in Australia, tap water is <a href="https://www.waterquality.gov.au/guidelines/drinking-water">monitored very carefully</a>. Unlike bottled water, it also has the added benefit of fluoride, which can help protect young children against <a href="https://linkinghub.elsevier.com/retrieve/pii/S0002-8177(14)60225-7">tooth decay</a> and cavities. Sparkling or still water is always <a href="https://pubmed.ncbi.nlm.nih.gov/30354445/">better</a> than artificially sweetened flavoured drinks or juices. <h2>Isn’t soda water bad for my teeth and bones?</h2> There’s no evidence sparkling water damages your bones. While drinking a lot of soft drinks is linked to increased <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7071508/">fractures</a>, this is largely due to their association with higher rates of obesity. Sparkling water is more acidic than still water, and acidity can soften the teeth’s <a href="https://pubmed.ncbi.nlm.nih.gov/35635779/">enamel</a>. Usually this is not something to be too worried about, unless it is mixed with sugar or citrus, which has much higher levels of acidity and can harm teeth. However, if you grind your teeth often, the softening could enhance the <a href="https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/teeth-grinding#risk-factors-for-tooth-grinding">damage it causes</a>. If you’re undertaking a home whitening process, sparkling water <a href="https://pubmed.ncbi.nlm.nih.gov/39123328/">might discolour</a> your teeth. In most other cases, it would take a lot of sparkling water to pass by the teeth, for a long period of time, to cause any noticeable damage. <h2>How does drinking water affect digestion?</h2> There is a <a href="https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/digestion/faq-20058348">misconception</a> drinking water (of any kind) with a meal is bad for digestion. While theoretically water could dilute stomach acid (which breaks down food), the practice of drinking it doesn’t appear <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11045127/">to have any negative effect</a>. Your digestive system simply adapts to the consistency of the meal. Some people do find that carbonated beverages cause some stomach upset. This is due to the build-up of <a href="https://www.sciencedirect.com/science/article/pii/S0939475309000787">gases</a>, which can cause bloating, cramping and discomfort. For people with an <a href="https://www.nature.com/articles/s41598-023-44916-8">overactive bladder</a>, the acidity might also aggravate the <a href="https://journals.physiology.org/doi/full/10.1152/ajpcell.00441.2022">urinary</a> system. Interestingly, the fizzy “<a href="https://pubmed.ncbi.nlm.nih.gov/34399552/">buzz</a>” you feel in your mouth from sparkling water fades the more you drink it. <h2>Is cold water harder to digest?</h2> You’ve chosen still or sparkling water. What about its temperature? There are surprisingly few studies about the effect of drinking cold water compared to room temperature. There is some evidence colder water (at two degrees Celsius) might inhibit <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7000532/">gastric contractions</a> and slow down digestion. Ice water may constrict blood vessels and cause <a href="https://www.sciencedirect.com/science/article/abs/pii/0306362383900642">cramping</a>. However other research suggests drinking cold water might temporarily boost <a href="https://academic.oup.com/jcem/article/88/12/6015/2661518">metabolism</a>, as the body needs to expend energy to warm it up to body temperature. This effect is minimal and unlikely to lead to significant <a href="https://academic.oup.com/jcem/article/91/9/3598/2656772">weight loss</a>. <h2>Which water wins?</h2> The bottom line is water is essential, hydrates us and has countless other <a href="https://news.com.au/lifestyle/health/diet/fewer-than-25-per-cent-simple-question-most-aussies-cant-answer/news-story/04693f23f03d9e8b6483cf34b47d9fcb">health benefits</a>. Water, with carbonated bubbles or without, will always be the healthiest drink to choose. And if you’re concerned about any impact to teeth enamel, one trick is to follow sparkling water with a glass of still. This helps rinse the teeth and return your mouth’s acidity back to normal.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237125/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/christian-moro-121754">Christian Moro</a>, Associate Professor of Science & Medicine, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a> and <a href="https://theconversation.com/profiles/charlotte-phelps-1187658">Charlotte Phelps</a>, Senior Teaching Fellow, Medical Program, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/is-still-water-better-for-you-than-sparkling-water-237125">original article</a>.

Food & Wine

Is white rice bad for me? Can I make it lower GI or healthier?

<a href="https://theconversation.com/profiles/emma-beckett-22673">Emma Beckett</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Rice is a <a href="http://www.ipni.net/publication/bci.nsf/0/42A2EA40E95CBD1385257BBA006531E9/$FILE/Better%20Crops%20International%202002-3%20p03.pdf">culinary staple</a> in Australia and around the world. It might seem like a given that brown rice is healthier than white and official <a href="https://www.eatforhealth.gov.au/eating-well/healthy-recipes/recipe-modification-tips">public health resources</a> often recommend brown rice instead of white as a “healthy swap”. But <a href="https://pubmed.ncbi.nlm.nih.gov/34441728/">Australians definitely prefer white rice</a> over brown. So, what’s the difference, and what do we need to know when choosing rice? <h2>What makes rice white or brown?</h2> Rice “grains” are technically seeds. A complete, whole rice seed is called a “paddy”, which has <a href="https://www.fao.org/4/t0567e/t0567e07.htm">multiple parts</a>: <ol> <li>the “hull” is the hard outer layer which protects the seed</li> <li>the “bran”, which is a softer protective layer containing the seed coat</li> <li>the “germ” or the embryo, which is the part of the seed that would develop into a new plant if was germinated</li> <li>the “endosperm”, which makes up most of the seed and is essentially the store of nutrients that feeds the developing plant as a seed grows into a plant.</li> </ol> Rice needs to be <a href="https://www.tandfonline.com/doi/pdf/10.1080/87559128509540778">processed</a> for humans to eat it. Along with cleaning and drying, the hard hulls are removed since we can’t digest them. This is how <a href="https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/1541-4337.12449">brown rice is made</a>, with the other three parts of the rice remaining intact. This means brown rice is regarded as a “wholegrain”. White rice, however, is a “refined” grain, as it is <a href="https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/1541-4337.12449">further polished</a> to remove the bran and germ, leaving just the endosperm. This is a mechanical and not a chemical process. <h2>What’s the difference, nutritionally?</h2> Keeping the bran and the germ means <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/cche.10322">brown rice has more</a> magnesium, phosphorus, potassium B vitamins (niacin, folate, riboflavin and pyridoxine), iron, zinc and fibre. The germ and the bran also contain more bioactives (compounds in foods that aren’t essential nutrients but have health benefits), like <a href="https://www.mdpi.com/1420-3049/28/2/532#:%7E:text=Brown%20rice%20(BR)%20is%20obtained,and%20phenolic%20compounds%20%5B3%5D.">oryzanols and phenolic compounds</a> which have antioxidant effects. But that doesn’t mean white rice is just empty calories. It <a href="https://www.glnc.org.au/wp-content/uploads/2011/04/GLNC_Rice-factsheet_WEB.pdf">still contains</a> vitamins, minerals and some fibre, and is low in fat and salt, and is naturally gluten-free. White and brown rice actually have <a href="https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/1541-4337.12449">similar</a> amounts of calories (or kilojoules) and total carbohydrates. There are studies that show eating more white rice is linked to <a href="https://diabetesjournals.org/care/article/43/11/2625/35820/A-Global-Perspective-on-White-Rice-Consumption-and">a higher risk</a> of type 2 diabetes. But it is difficult to know if this is down to the rice itself, or other related factors such as socioeconomic variables or other dietary patterns. <h2>What about the glycaemic index?</h2> The higher fibre means brown rice has a <a href="https://www.sciencedirect.com/science/article/pii/S0002916523314862">lower glycaemic index</a> (GI), meaning it raises blood sugar levels more slowly. But this is highly variable between different rices within the white and brown categories. The <a href="https://www.betterhealth.vic.gov.au/health/healthyliving/carbohydrates-and-the-glycaemic-index#:%7E:text=The%20glycaemic%20index%20(GI)%20is,simple'%20or%20'complex'.">GI system</a> uses low (less than 55), medium (55–70) and high (above 70) categories. <a href="https://glycemicindex.com/gi-search/?food_name=rice&product_category=&country=&gi=&gi_filter=&serving_size_(g)=&serving_size_(g)_filter=&carbs_per_serve_(g)=&carbs_per_serve_(g)_filter=&gl=&gl_filter=">Brown rices</a> fall into the low and medium categories. <a href="https://glycemicindex.com/gi-search/?food_name=rice&product_category=&country=&gi=&gi_filter=&serving_size_(g)=&serving_size_(g)_filter=&carbs_per_serve_(g)=&carbs_per_serve_(g)_filter=&gl=&gl_filter=">White rices</a> fall in the medium and high. There are specific <a href="https://www.gisymbol.com/low-gi-products/sunrice-doongara-low-gi-white-clever-rice-1kg/">low-GI types available</a> for both white and brown types. You can also lower the GI of rice by <a href="https://pubs.acs.org/doi/abs/10.1021/jf503203r">heating and then cooling it</a>. This process converts some of the “available carbohydrates” into “resistant starch”, which then functions like dietary fibre. <h2>Are there any benefits to white rice?</h2> The <a href="https://www.realsimple.com/brown-rice-vs-white-rice-8417468#:%7E:text=The%20eating%20experience%20between%20these,chewier%20texture%20and%20nuttier%20flavor.">taste and textural qualities</a> of white and brown rices differ. White rice tends to have a softer texture and more mild or neutral flavour. Brown rice has a chewier texture and nuttier flavour. So, while you can technically substitute brown rice into most recipes, the experience will be different. Or other ingredients may need to be added or changed to create the desired texture. Removing more of the outer layers may also reduce the levels of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10375490/">contaminants</a> such as pesticides. <h2>We don’t just eat rice</h2> Comparing white and brown rice seems like an easy way to boost nutritional value. But just because one food (brown rice) is more nutrient-dense doesn’t make the other food (white rice) “bad”. Ultimately, it’s not often that we eat just rice, so we don’t need the rice we choose to be the perfect one. Rice is typically the staple base of a more complex dish. So, it’s probably more important to think about what we eat with rice. Adding vegetables and lean proteins to rice-based dishes can easily add the micronutrients, bioactives and fibre that white rice is comparatively lacking, and this can likely do more to contribute to diet quality than eating brown rice instead.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/236767/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/emma-beckett-22673">Emma Beckett</a>, Adjunct Senior Lecturer, Nutrition, Dietetics & Food Innovation - School of Health Sciences, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/is-white-rice-bad-for-me-can-i-make-it-lower-gi-or-healthier-236767">original article</a>.

Food & Wine

4 ways to cut down on meat when dining out – and still make healthy choices

.<a href="https://theconversation.com/profiles/laura-marchese-1271636">Laura Marchese</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> and <a href="https://theconversation.com/profiles/katherine-livingstone-324808">Katherine Livingstone</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> Many of us are looking for ways to eat a healthier and more <a href="https://theconversation.com/how-sustainable-is-your-weekly-grocery-shop-these-small-changes-can-have-big-benefits-234367">sustainable diet</a>. And one way to do this is by reducing the amount of meat we eat. That doesn’t mean you need to become a <a href="https://theconversation.com/why-you-should-eat-a-plant-based-diet-but-that-doesnt-mean-being-a-vegetarian-78470">vegan or vegetarian</a>. Our <a href="https://jn.nutrition.org/article/S0022-3166(24)00333-X/fulltext">recent research</a> shows even small changes to cut down on meat consumption could help improve health and wellbeing. But not all plant-based options are created equal and some are <a href="https://pubmed.ncbi.nlm.nih.gov/30744710/">ultra-processed</a>. Navigating what’s available when eating out – including options like tofu and fake meats – can be a challenge. So what are your best options at a cafe or restaurant? Here are some guiding principles to keep in mind when cutting down on meat. <h2>Health benefits to cutting down</h2> Small amounts of lean meat can be part of a healthy, balanced diet. But the majority of Australians <a href="https://cancer.org.au/about-us/policy-and-advocacy/prevention/obesity/related-resources/meat-and-cancer#consumption">still eat more meat</a> than recommended. Only a small percentage of Australians (10%) are vegetarian or vegan. But an <a href="https://www.foodfrontier.org/wp-content/uploads/2019/10/Food-Frontier-Hungry-For-Plant-Based-Australian-Consumer-Insights.pdf">increasing</a> number opt for a <a href="https://theconversation.com/love-meat-too-much-to-be-vegetarian-go-flexitarian-73741">flexitarian</a> diet. <a href="https://theconversation.com/whats-the-difference-between-vegan-and-vegetarian-225275">Flexitarians</a> eat a diet rich in fruits and vegetables, while still enjoying small amounts of meat, dairy, eggs and fish. Our <a href="https://jn.nutrition.org/article/S0022-3166(24)00333-X/fulltext">recent research</a> looked at whether the average Australian diet would improve if we swapped meat and dairy for plant-based alternatives, and the results were promising. The study found health benefits when people halved the amount of meat and dairy they ate and replaced them with healthy plant-based foods, like tofu or <a href="https://www.heartfoundation.org.au/blog/why-you-need-legumes-in-your-life">legumes</a>. On average, their dietary fibre intake – which helps with feeling fuller for longer and digestive health – went up. Saturated fats – which increase our blood cholesterol levels, a risk factor for heart disease – went down. Including more fibre and less saturated fat helps reduce the risk of <a href="https://www.heartfoundation.org.au/healthy-living/healthy-eating/healthy-eating-to-protect-your-heart">heart disease</a>. Achieving these health benefits may be as simple as swapping ham for baked beans in a toastie for lunch, or substituting half of the mince in your bolognese for lentils at dinner. <h2>How it’s made matters</h2> For a long time we’ve known processed meats – such as ham, bacon and sausages – are bad for your health. Eating high amounts of these foods is associated with poor <a href="https://www.heartfoundation.org.au/healthy-living/healthy-eating/protein-and-heart-health">heart health</a> and some forms of <a href="https://cancer.org.au/cancer-information/causes-and-prevention/diet-and-exercise/meat-and-cancer-risk">cancer</a>. But the same can be true of many processed meat alternatives. Plant-based alternatives designed to mimic meat, such as sausages and burgers, have become readily available in supermarkets, cafes and restaurants. These products are ultra-processed and can be <a href="https://theconversation.com/we-looked-at-700-plant-based-foods-to-see-how-healthy-they-really-are-heres-what-we-found-222991">high in salt and saturated fat</a>. Our study found when people replaced meat and dairy with ultra-processed meat alternatives – such as plant-based burgers or sausages – they ate more salt and less calcium, compared to eating meat or healthy plant-based options. So if you’re cutting down on meat for health reasons, it’s important to think about what you’re replacing it with. The <a href="https://www.eatforhealth.gov.au/sites/default/files/2022-09/n55g_adult_brochure.pdf">Australian Dietary Guidelines</a> recommend eggs, legumes/beans, tofu, nuts and seeds. Tofu can be a great option. But we recommend flavouring plain tofu with herbs and spices yourself, as pre-marinated products are often ultra-processed and can be high in salt. <h2>What about when dining out?</h2> When you’re making your own food, it’s easier to adapt recipes or reduce the amount of meat. But when faced with a menu, it can be difficult to work out what is the best option. Here are our four ways to make healthy choices when you eat out: 1. Fill half your plate with vegetables When cutting down on meat, aim for half your plate to be vegetables. Try to also eat <a href="https://theconversation.com/were-told-to-eat-a-rainbow-of-fruit-and-vegetables-heres-what-each-colour-does-in-our-body-191337">a variety of colours</a>, such as leafy green spinach, red capsicum and pumpkin. When you’re out, this might look like choosing a vegetable-based entree, a stir-fry or ordering a side salad to have with your meal. 2. Avoid the deep fryer The Australian Dietary Guidelines <a href="https://www.eatforhealth.gov.au/sites/default/files/files/the_guidelines/n55a_australian_dietary_guidelines_summary_130530.pdf">recommend limiting</a> deep fried foods to once a week or less. When dining out, choose plant-based options that are sautéed, grilled, baked, steamed, boiled or poached – instead of those that are crumbed or battered before deep frying. This could mean choosing vegetarian dumplings that are steamed not fried, or poached eggs at brunch instead of fried. Ordering a side of roast vegetables instead of hot chips is also a great option. 3. Pick wholegrains Scan the menu for wholegrain options such as brown rice, wholemeal pizza or pasta, barley, quinoa or wholemeal burger buns. Not only are they good sources of protein, but they also provide more <a href="https://www.eatforhealth.gov.au/food-essentials/five-food-groups/grain-cereal-foods-mostly-wholegrain-and-or-high-cereal-fibre">dietary fibre</a> than refined grains, which help keep you fuller for longer. 4. If you do pick meat – choose less processed kinds You may not always want, or be able, to make a vegetarian choice when eating out and with other people. If you do opt for meat, it’s better to steer clear of processed options like bacon or sausages. If sharing dishes with other people, you could try adding unprocessed plant-based options into the mix. For example, a curry with lentils or chickpeas, or a vegetable-based pizza instead of one with ham or salami. If that’s not an option, try choose meat that’s a lean cut, such as chicken breast, or options which are grilled rather than fried.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/236505/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/laura-marchese-1271636">Laura Marchese</a>, PhD candidate at the Institute for Physical Activity and Nutrition, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> and <a href="https://theconversation.com/profiles/katherine-livingstone-324808">Katherine Livingstone</a>, NHMRC Emerging Leadership Fellow and Senior Research Fellow at the Institute for Physical Activity and Nutrition, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/4-ways-to-cut-down-on-meat-when-dining-out-and-still-make-healthy-choices-236505">original article</a>.

Food & Wine

Woman banned for life from airline for bizarre reason

A woman has recalled the moment she was told by a major airline that she has been placed on the no-fly list for a very strange reason. Erin Wright, a 24-year-old from the US, was travelling to her sister's bachelorette party in New Mexico and was preparing to board her flight from New Orleans with American Airlines. When she kept running into errors online as she tried to check into the flight, she headed to the airport to sort out the issue, only to be told she was allegedly banned from the airline for life for “having sexual relations with a man on a flight while intoxicated”. The ban came as a shock for one key reason. “I am a 24-year-old lesbian. You see me. Am I having sexual relations with any man? No,” Erin laughed in her now viral TikTok. <div class="embed" style="font-size: 16px; box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; outline: currentcolor !important;"><iframe class="embedly-embed" style="box-sizing: inherit; margin: 0px; padding: 0px; border-width: 0px; border-style: none; vertical-align: baseline; width: 600px; max-width: 100%; outline: currentcolor !important;" title="tiktok embed" src="https://cdn.embedly.com/widgets/media.html?src=https%3A%2F%2Fwww.tiktok.com%2Fembed%2Fv2%2F7400894263237610794&display_name=tiktok&url=https%3A%2F%2Fwww.tiktok.com%2F%40erin_wright_%2Fvideo%2F7400894263237610794%3Fembed_source%3D121374463%252C121451205%252C121439635%252C121433650%252C121404359%252C121351166%252C121331973%252C120811592%252C120810756%253Bnull%253Bembed_name%26refer%3Dembed%26referer_url%3Dwww.news.com.au%252Ftravel%252Ftravel-updates%252Fincidents%252Fwomans-shock-after-she-was-banned-or-life-by-airline%252Fnews-story%252F98c05daffea9ff538dd05bbbbaca556b%26referer_video_id%3D7401685057980681514&image=https%3A%2F%2Fp19-sign.tiktokcdn-us.com%2Fobj%2Ftos-useast5-p-0068-tx%2FoYgBZAELUrpiZizB94QiB6qSIPFE1CosQNYUi%3Flk3s%3Db59d6b55%26nonce%3D34496%26refresh_token%3D518d47d36cd3175f1d18f1fd75262373%26x-expires%3D1723770000%26x-signature%3DPnErCHWVNghfrjSQPdFIU5OLZu4%253D%26shp%3Db59d6b55%26shcp%3D-&key=59e3ae3acaa649a5a98672932445e203&type=text%2Fhtml&schema=tiktok" width="340" height="700" frameborder="0" scrolling="no" allowfullscreen="allowfullscreen"></iframe></div> She said the gate staff couldn’t tell her why she was black-listed and it wasn’t until three weeks later the reason was revealed after several back and forth emails. “I got to the airport an hour and a half early, I went to the kiosk and asked them to check me in and they were really nice,” Erin explained in the clip that's amassed 2.6 million views. The airport staff then spent the next 10 minutes on the phone to try and work out the problem, while Erin was “freaking out” that she was going to miss her flight. “She gets off the phone and looks nervous. She said ‘ma’am I am really sorry to tell you this but you have actually been banned from flying American Airlines’,” Erin claimed. A confused Erin demanded to know the reason but the employee couldn’t disclose the information saying it was an issue of “internal security”, recalling in her video, “I was like, ‘what?’ because I’ve never done anything. ‘What did I get banned for, can you tell me?’” “I realised I am going to miss my [United Airlines] flight and luckily I booked another $1,000 round trip flight to New Orleans [with a different airline].” A few weeks after her trip and after several emails to the airline, they revealed that the reason she was banned, as Erin said, “I get an email from cooperate security telling me I am banned because I had sexual relations with a man on a flight while intoxicated.” “It took 12 days and many emails from me between when I contacted customer relations to when I actually got an email back.” She remained on the no-fly list and had to file an official appeal, as advised by corporate security. “I email them a very serious email, but also somewhat funny, because in it I am like ‘I don’t really know how to prove it wasn’t me except for the fact that I am literally a lesbian’," she said. “I can like get you letters from other people telling you that that’s the truth.” After three months, Erin said she was refunded the money for her flight and was taken off the no-fly list. In a follow up video, Erin said it has been a “super upsetting experience” adding she wasn’t compensated for the extra flight she had to book “because of their error”. Image credits: TikTok / Shutterstock

Travel Trouble

5 foods to add to your shopping list to save money – and they’re good for you too

<a href="https://theconversation.com/profiles/clare-collins-7316">Clare Collins</a>, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a> Food prices are <a href="https://www.abc.net.au/news/2024-06-13/anglicare-cost-living-unemployment-groceries-fuel-rent-prices/103972166?utm_medium=social&utm_content=sf273549397&utm_campaign=abc&utm_source=linkedin.com&sf273549397=1">adding pressure on household budgets</a>, especially for Australians on the lowest incomes. To help save money on the weekly groceries, consider adding these five staples to your shopping trolley: eggs, oats, carrots, UHT milk and apples. These foods rate highly on the <a href="https://pubmed.ncbi.nlm.nih.gov/20181811/">nutrient-rich foods index</a> and on cost, meaning they represent good value for money when it comes to buying nutritious food. Loading up on these items helps push more expensive, less nutritious foods out of your trolley. Keeping a supply at your place will also save extra trips to the shops, which saves petrol and time. <h2>1. Eggs</h2> Eggs are extremely good value at around A$6 a dozen (50 cents an egg). Meat, chicken and fish prices vary from $12 a kilo for mince, $12–$20 a kilo for chicken, to $20–$50 a kilo for steak and fish depending on cut or type. Selecting the cheapest cuts still costs $2–$3 a serve, compared to two eggs at a $1 serve. When you swap a red meat meal for an eggy dish, this can add up to a big saving. Try our egg recipes on the <a href="https://nomoneynotime.com.au/healthy-easy-recipes/filter/meals--dinner,lunch/superfoods--eggs">No Money No Time website</a>, from <a href="https://nomoneynotime.com.au/healthy-easy-recipes/sweetcorn-and-zucchini-fritters">fritters</a>, to <a href="https://nomoneynotime.com.au/healthy-easy-recipes/mushroom-omelette">omelettes</a>, or <a href="https://nomoneynotime.com.au/healthy-easy-recipes/clares-rainbow-rice">fried rice</a>. These recipes also help use up other items you have in the pantry, fridge and veggie crisper. Eggs are a good <a href="https://www.australianeggs.org.au/nutrition/nutrients-and-vitamins">source</a> of protein and also contain choline, lutein and zeaxanthin, vitamins A, B2, B12, D, E and folate, and minerals iron, zinc, iodine and selenium. For people concerned about eggs raising cholesterol, a <a href="https://pubmed.ncbi.nlm.nih.gov/38370115/">recent review of research evidence</a> concluded there wasn’t likely to be any adverse effect on overall disease risk when consuming up to one egg a day. <h2>2. Rolled oats</h2> Rolled oats vary a lot in price from about $2 a kilogram for “own brand”, up to $9 for premium varieties. Oats are really <a href="https://nomoneynotime.com.au/healthy-easy-recipes/filter/keywords--Oats">versatile</a>. For breakfast you can make <a href="https://nomoneynotime.com.au/healthy-easy-recipes/microwave-porridge">porridge</a>, <a href="https://nomoneynotime.com.au/healthy-easy-recipes/easy-overnight-oats">overnight oats,</a> DIY muesli or <a href="https://nomoneynotime.com.au/healthy-easy-recipes/gingerbread-granola">granola</a>. Oats make a pastry substitute for a <a href="https://nomoneynotime.com.au/healthy-easy-recipes/clares-rolled-oats-quiche">quick and easy quiche base</a>. Or blitz them in a food processor and use as a breadcrumb substitute. For dessert, you can use them to top a comforting <a href="https://nomoneynotime.com.au/healthy-easy-recipes/wholegrain-apple-crumble">apple crumble</a>. <a href="https://www.glnc.org.au/resource/oats-2/">Oats are a wholegrain</a>, meaning they retain every part of the original grain – the germ, bran and outer layers – and hence more fibre and nutrients. Oats are a rich in beta-glucan, a soluble fibre that <a href="https://pubmed.ncbi.nlm.nih.gov/34236436/">helps lower blood cholesterol levels</a> by binding with bile acids in the gut, meaning they can’t be converted into LDL (bad) cholesterol. They <a href="https://www.glnc.org.au/resource/oats-2/">also contain</a> B vitamins of thiamin (b1), riboflavin (B2), niacin (B3), pyridoxine (B6), pantothenic acid (B5) and folate (B9), as well as vitamin E and the minerals iron, zinc, magnesium, phosphorus and potassium. <h2>3. Carrots</h2> It’s hard to get better value than a bag of carrots at about $2.50 a kilo. They last for ages in the fridge and can be eaten raw, as carrot sticks or with <a href="https://nomoneynotime.com.au/healthy-easy-recipes/moroccan-carrot-dip">carrot dip</a>, or baked to make carrot veggie “<a href="https://nomoneynotime.com.au/healthy-easy-recipes/vegetable-chips">chips</a>”. Try grating carrot as an extra on a salad roll or <a href="https://nomoneynotime.com.au/healthy-easy-recipes/basic-beef-burgers">burger</a>, or mixed into grated cheese to extend it when topping tacos, pasta or pizza, or even a dish like <a href="https://nomoneynotime.com.au/healthy-easy-recipes/carrot-and-cauliflower-macaroni-cheese">mac and cheese</a>. Other versatile uses include soup, <a href="https://nomoneynotime.com.au/healthy-easy-recipes/carrot-puree">carrot mash</a>, <a href="https://nomoneynotime.com.au/healthy-easy-recipes/baked-carrots-with-honey-thyme">roasted carrots</a> or, for something sweet, carrot muffins or <a href="https://nomoneynotime.com.au/healthy-easy-recipes/easy-carrot-cake-bliss-balls">bliss balls</a>. Carrots are rich in the carotenoids <a href="https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/">alpha-carotene and beta-carotene</a>, which get converted into vitamin A in the body and used in antibody production and to maintain <a href="https://ods.od.nih.gov/factsheets/VitaminA-Consumer/">healthy functioning</a> of your eyes, skin, lungs and gut. <h2>4. Longlife skim milk</h2> Longlife skim milk costs about $1.60 a litre. While some fresh varieties are around the same price, the value of longlife milk is that you can keep a store of it in the cupboard, meaning you never run out and it has a long shelf life. Milk makes great <a href="https://nomoneynotime.com.au/healthy-easy-recipes/banana-breakfast-smoothie">smoothies</a> and is an essential ingredient in dishes from quiche to <a href="https://nomoneynotime.com.au/healthy-easy-recipes/cauliflower-cheese-bake">cauliflower cheese</a> to <a href="https://nomoneynotime.com.au/healthy-easy-recipes/clares-lemon-orange-delicious">lemon delicious</a> pudding. <a href="https://www.betterhealth.vic.gov.au/health/healthyliving/milk#nutrients-in-milk">Milk contains</a> protein, calcium, magnesium, zinc, potassium and vitamins A, B2 and B12. Research shows regular milk consumption is <a href="https://www.betterhealth.vic.gov.au/health/healthyliving/milk#milk-and-health-conditions">associated with</a> a lower risk of developing osteoporosis, high blood pressure, type 2 diabetes, heart disease and colon cancer. <h2>5. Apples</h2> A bag of apples costs about $4 or 60 cents an apple and $4–$5 for a large can of stewed apple. Apples make a portable snack. Add <a href="https://nomoneynotime.com.au/healthy-easy-recipes/comforting-apple-porridge">them to porridge</a>, serve <a href="https://nomoneynotime.com.au/healthy-easy-recipes/pork-loin-rolls">with pork</a>, <a href="https://nomoneynotime.com.au/healthy-easy-recipes/carrot-and-apple-coleslaw-with-mustard-vinaigrette">in coleslaw</a> or in <a href="https://nomoneynotime.com.au/healthy-easy-recipes/wholegrain-apple-crumble">apple crumble</a>. Apples <a href="https://pubmed.ncbi.nlm.nih.gov/35502671/">contain</a> dietary fibre and pectin, vitamin B6 and C, and the minerals potassium, calcium, nitrogen, magnesium and traces of zinc, iron and copper. In <a href="https://pubmed.ncbi.nlm.nih.gov/31667463/">observational studies</a>, people who ate more apples had a lower risk of heart disease, stroke, type 2 diabetes and death from any cause. For easy, tasty, economical meals that are quick to prepare, without too much effort, along with our food budget tips, visit our team’s <a href="https://nomoneynotime.com.au/">No Money No Time</a> website.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/229903/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/clare-collins-7316">Clare Collins</a>, Laureate Professor in Nutrition and Dietetics, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/5-foods-to-add-to-your-shopping-list-to-save-money-and-theyre-good-for-you-too-229903">original article</a>.

Food & Wine

Food and exercise can treat depression as well as a psychologist, our study found. And it’s cheaper

<a href="https://theconversation.com/profiles/adrienne-oneil-268324">Adrienne O'Neil</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> and <a href="https://theconversation.com/profiles/sophie-mahoney-1557294">Sophie Mahoney</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> Around <a href="https://www.aihw.gov.au/getmedia/6b19e493-0ebe-420f-a9a3-e48b26aace9f/aihw-aus-249-ib.pdf?v=20240628145747&inline=true">3.2 million</a> Australians live with depression. At the same time, <a href="https://www.aihw.gov.au/getmedia/6b19e493-0ebe-420f-a9a3-e48b26aace9f/aihw-aus-249-ib.pdf?v=20240628145747&inline=true">few</a> Australians meet recommended dietary or physical activity guidelines. What has one got to do with the other? Our world-first trial, <a href="https://www.thelancet.com/journals/lanwpc/article/PIIS2666-6065%2824%2900136-6/fulltext">published this week</a>, shows improving diet and doing more physical activity can be as effective as therapy with a psychologist for treating low-grade depression. Previous studies (including <a href="https://link.springer.com/article/10.1186/s12916-017-0791-y">our own</a>) have found “lifestyle” therapies are effective for depression. But they have never been directly compared with psychological therapies – until now. Amid a nation-wide <a href="https://www.health.gov.au/sites/default/files/2023-10/national-mental-health-workforce-strategy-2022-2032.pdf">shortage</a> of mental health professionals, our research points to a potential solution. As we found lifestyle counselling was as effective as psychological therapy, our findings suggest dietitians and exercise physiologists may one day play a role in managing depression. <h2>What did our study measure?</h2> During the prolonged COVID lockdowns, Victorians’ distress levels were <a href="https://onlinelibrary.wiley.com/doi/full/10.5694/mja2.50831">high and widespread</a>. Face-to-face mental health services were limited. Our trial targeted people living in Victoria with elevated distress, meaning at least mild depression but not necessarily a diagnosed mental disorder. Typical symptoms included feeling down, hopeless, irritable or tearful. We partnered with our <a href="https://www.barwonhealth.org.au/mhdas/">local mental health service</a> to recruit 182 adults and provided group-based sessions on Zoom. All participants took part in up to six sessions over eight weeks, facilitated by health professionals. Half were randomly assigned to participate in a program co-facilitated by an accredited practising dietitian and an exercise physiologist. That group – called the lifestyle program – developed nutrition and movement goals: <ul> <li>eating a wide variety of foods</li> <li>choosing high-fibre plant foods</li> <li>including high quality fats</li> <li>limiting discretionary foods, such as those high in saturated fats and added sugars</li> <li>doing enjoyable physical activity.</li> </ul> The second group took part in psychotherapy sessions convened by two psychologists. The psychotherapy program used cognitive behavioural therapy (CBT), the gold standard for treating depression in <a href="https://jamanetwork.com/journals/jamapsychiatry/article-abstract/2730724">groups and when delivered remotely</a>. In both groups, participants could continue existing treatments (such as taking antidepressant medication). We gave both groups <a href="https://link.springer.com/article/10.1186/s12888-022-03840-3">workbooks and hampers</a>. The lifestyle group received a food hamper, while the psychotherapy group received items such as a colouring book, stress ball and head massager. <h2>Lifestyle therapies just as effective</h2> We found similar results in each program. At the trial’s beginning we gave each participant a score based on their self-reported mental health. We measured them again at the end of the program. Over eight weeks, those scores showed symptoms of depression reduced for participants in the lifestyle program (42%) and the psychotherapy program (37%). That difference was not statistically or clinically meaningful so we could conclude both treatments were as good as each other. There were some differences between groups. People in the lifestyle program improved their diet, while those in the psychotherapy program felt they had increased their social support – meaning how connected they felt to other people – compared to at the start of the treatment. Participants in both programs increased their physical activity. While this was expected for those in the lifestyle program, it was less expected for those in the psychotherapy program. It may be because they knew they were enrolled in a research study about lifestyle and subconsciously changed their activity patterns, or it could be a positive by-product of doing psychotherapy. There was also not much difference in cost. The lifestyle program was slightly cheaper to deliver: A$482 per participant, versus $503 for psychotherapy. That’s because hourly rates differ between dietitians and exercise physiologists, and psychologists. <h2>What does this mean for mental health workforce shortages?</h2> Demand for mental health services is increasing in Australia, while at the same time the workforce <a href="https://www.health.gov.au/sites/default/files/2023-10/national-mental-health-workforce-strategy-2022-2032.pdf">faces worsening nation-wide shortages</a>. Psychologists, who provide <a href="https://www.aihw.gov.au/getmedia/6b19e493-0ebe-420f-a9a3-e48b26aace9f/aihw-aus-249-ib.pdf?v=20240628145747&inline=true">about half</a> of all mental health services, can have long wait times. Our results suggest that, with the appropriate training and guidelines, allied health professionals who specialise in diet and exercise could help address this gap. Lifestyle therapies can be combined with psychology sessions for multi-disciplinary care. But diet and exercise therapies could prove particularly effective for those on waitlists to see a psychologists, who may be receiving no other professional support while they wait. Many dietitians and exercise physiologists already have advanced skills and expertise in motivating behaviour change. Most accredited practising dietitians are trained in managing <a href="https://link.springer.com/content/pdf/10.1007/978-3-030-67929-3_38-1.pdf">eating disorders</a> or <a href="https://www.nature.com/articles/s41572-020-0200-2">gastrointestinal conditions</a>, which commonly overlap with depression. There is also a cost argument. It is <a href="https://journals.sagepub.com/doi/full/10.1177/1355819616668202">overall cheaper</a> to train a dietitian ($153,039) than a psychologist ($189,063) – and it takes less time. <h2>Potential barriers</h2> Australians with chronic conditions (such as diabetes) can access subsidised dietitian and exercise physiologist appointments under various Medicare treatment plans. Those with eating disorders can also access subsidised dietitian appointments. But mental health care plans for people with depression do not support subsidised sessions with dietitians or exercise physiologists, despite <a href="https://dietitiansaustralia.org.au/sites/default/files/2024-04/Dietitians%20Australia%20Mental%20Health%20Evidence%20Brief%202024.pdf">peak bodies</a> urging them to do so. Increased training, upskilling and Medicare subsidies would be needed to support dietitians and exercise physiologists to be involved in treating mental health issues. <a href="https://foodandmoodcentre.com.au/academy">Our training</a> and clinical <a href="https://www.tandfonline.com/doi/full/10.1080/15622975.2022.2112074">guidelines</a> are intended to help clinicians practising lifestyle-based mental health care within their scope of practice (activities a health care provider can undertake). <h2>Future directions</h2> Our trial took place during COVID lockdowns and examined people with at least mild symptoms of depression who did not necessarily have a mental disorder. We are seeking to replicate these findings and are now running <a href="https://foodandmoodcentre.com.au/projects/the-harmone-trial/">a study</a> open to Australians with mental health conditions such as major depression or bipolar disorder. If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/235952/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/adrienne-oneil-268324">Adrienne O'Neil</a>, Professor, Food & Mood Centre, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> and <a href="https://theconversation.com/profiles/sophie-mahoney-1557294">Sophie Mahoney</a>, Associate Research Fellow, Food and Mood Centre, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/food-and-exercise-can-treat-depression-as-well-as-a-psychologist-our-study-found-and-its-cheaper-235952">original article</a>.

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Food and exercise can treat depression as well as a psychologist, our study found. And it’s cheaper