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

<div class="theconversation-article-body"><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>. </div>

Food & Wine

Parents' devastation after baby attacker flees the country

The parents of an infant boy who suffered severe burns after having hot coffee poured over him have spoken of their devastation after learning their son's <a href="https://www.oversixty.com.au/finance/legal/manhunt-after-stranger-pours-scalding-hot-coffee-on-baby-in-public-park" target="_blank" rel="noopener">alleged attacker</a> fled the country. The nine-month old baby boy was attacked while having a picnic with his mother at a Brisbane park on August 27. The man allegedly came up to the boy and poured a Thermos of hot coffee on the baby, burning his face and chest. The boy has since undergone three rounds of surgery to treat his wounds. On Monday, Queensland police said that the 33-year-old man accused of the attack has fled the country on his own passport a day before they identified him. The foreign national had travelled by car to NSW on August 28 before flying out of Sydney airport on August 31. Police said that a warrant has been issued for his arrest. The babies parents, who chose to remain anonymous, have spoken of their devastation. “It sounds like they were very, very close in catching him, and this obviously means that we’re going to have to wait who knows how long to get justice for our son,” the mother told the ABC. “It’s a bit heartbreaking.” She said the incident had left her living in fear and it would affect her mental health for the rest of her life. "Returning home I had panic attacks, and still continue to do so. I do feel relief that he's not in this country, in some sense, but I will always have fear and anxiety being out in public with my son," she said. "It should be a happy, joyful time. I'm a first-time mum and he's taken that away from me." Luka's father said his baby boy was in "good spirits" and didn't "want to sit still" despite his injuries. Queensland Police Detective Inspector Paul Dalton said the investigation was one of the most “complex and frustrating” he had been involved in. He said the alleged attacker was “aware of police methodologies” and was “conducting counter-surveillance activities” that made it more complex. “It wasn’t until September 1 that we were able to put a name to the face in the CCTV,” Inspector Dalton said. He added that it was still too early in the investigation to disclose the name of the suspect publicly as it could "jeopardise the integrity of this investigation and any chance of bringing this person to justice". “We will keep going until we find you, and I have not lost that determination,” Inspector Dalton said. “I’ve got 30 detectives working for me. They are devastated that they missed this person by 12 hours. I think only the family would be more upset about that.” He urged the man, who had been "coming and going" from Australia since 2019 on working and holiday visas, to return to Australia and come forward. “I encourage him to do that. There’ll be no judgment on you whatsoever,” Inspector Dalton said. Images: ABC News/ news.com.au

Legal

Residents slam "entitled" picnic table act at popular beach

With the weather warming up in Sydney, locals have started to take advantage of the sun and head to beach, but with sunny days come debates about picnic (or any) table etiquette. One beachgoer has copped some backlash after they taped up a sign to a public picnic table in Balmoral Beach on Saturday, which read: "Reserved 31/8 from 1pm" - and with no one in sight. A frustrated local shared an image of the table on Facebook, writing: "Really? Love to know where you place the official booking. Both tables 'reserved'." In the comments some labelled the move "unacceptable" while others were quick to point out that reserving tables is "not allowed". "Yeah, nah. Can’t reserve public tables. You want it, put the effort in and sit there the whole day from 8am," one wrote. "If you won't remove the reserved sign please update this post to add a picture of the group when they claim their tables. If they're that bold and brazen to make the reserved sign they will appreciate the free publicity," another added. A third wrote that they would be "ok if they said for a wedding or a super important event I would let them go for it" but others disagreed. A Mosman Council spokesperson told Yahoo, "council does not take bookings for picnic tables or promote reserving them." This is not the first time someone has tried to reserve a public picnic table, with one person etching a "reserved" note in chalk on the pavement at a park in Brisbane. Locals shared a similar response, calling the move "entitled." "Pretty sure that message on the concrete would motivate others to sit there when they otherwise wouldn't. I know I would," one wrote. Images: Facebook/ Yahoo

Travel Trouble

Manhunt after stranger pours scalding hot coffee on baby in public park

Queensland Police have released footage of the man they believe burned a baby with a scalding hot drink in a public park. On Wednesday, the unknown man approached the family at Hanlon Park in Brisbane and poured hot coffee on the nine-month-old baby boy. He was rushed to the Queensland Children’s Hospital with burns to his face, upper body and arms, with the burns covering 60 per cent of his body. Queensland Police have now released CCTV footage from the area, showing a man running from the park. He appears approximately 30 to 40 years old, with a proportionate build and tanned skin, and was wearing a black hat, glasses, a shirt and shorts. Anyone who recognises the man has been urged to contact the police with information. An off-duty nurse heard the commotion in the park from the balcony of her apartment, telling <a href="https://7news.com.au/news/footage-of-man-who-burnt-baby-with-hot-drink-at-hanlon-park-in-stones-corner-released-c-15856522" target="_blank" rel="noopener">7News</a> she went outside to investigate when she heard screaming. She said she heard the child’s mother yelling “my baby, my baby”. The nurse rushed down to the park to help the boy, taking him to her nearby apartment where he was placed under a cold shower before paramedics arrived. Locals told 7News the attack was “terrible” and they were shocked it had happened in their community. “It’s really scary when you think that we haven’t got a community that looks after our young and vulnerable,” one woman said. Image credits: Queensland Police

Legal

All the reasons a cup of coffee really can be good for you

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/justin-stebbing-1405462">Justin Stebbing</a>, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> Consuming too much caffeine is definitely bad for your health, and there may be good reasons why some people want to <a href="https://theconversation.com/caffeine-heres-how-quitting-can-benefit-your-health-220746">quit it altogether</a>. But if you despair at the idea of giving up your morning coffee, fear not. There’s lots of research out there to show that moderate coffee intake is linked with all sorts of benefits. As well as well-known pluses improving heart health, a daily cup of coffee even seems to be good for your brain and may help prevent mental illness. For a start, coffee contains several essential nutrients beneficial to <a href="https://pubmed.ncbi.nlm.nih.gov/37764216/">overall health</a>. A typical eight-ounce cup of coffee provides small amounts of B <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073624/">vitamins</a> – riboflavin, pantothenic acid, thiamine and niacin – as well as minerals <a href="https://pubmed.ncbi.nlm.nih.gov/25415479/">potassium, manganese, and magnesium</a>. The nutrients in coffee can contribute significantly to daily intake when multiple cups are consumed. It’s also rich in <a href="https://pubmed.ncbi.nlm.nih.gov/36361861/">antioxidants</a>. In fact, many people – especially in the west – will probably get more antioxidants from coffee than from fruit and vegetables. So what does drinking coffee actually mean for the body? One of the most <a href="https://www.ncbi.nlm.nih.gov/books/NBK209050/">well-known</a> potential benefits of coffee is its ability to <a href="https://theconversation.com/nope-coffee-wont-give-you-extra-energy-itll-just-borrow-a-bit-that-youll-pay-for-later-197897">boost energy levels</a> and improve mental <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5608989/">alertness</a>, especially first thing in the morning or during an afternoon slump. This is primarily due to caffeine, a natural stimulant found in coffee, which blocks the brain’s <a href="https://www.news-medical.net/health/What-is-Adenosine.aspx#:%7E:text=In%20the%20brain%20adenosine%20is,the%20brain%20rise%20each%20hour.">inhibitory neurotransmitter adenosine</a>, which promotes sleep and suppresses arousal. This leads to increased neuronal firing and the <a href="https://pubmed.ncbi.nlm.nih.gov/1356551/">release</a> of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4462609/">neurotransmitters</a> like <a href="https://www.ncbi.nlm.nih.gov/books/NBK223808/">dopamine</a> and <a href="https://www.ncbi.nlm.nih.gov/books/NBK537259/">norepinephrine</a>, which enhance mood, reaction time and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8202818/">cognitive function</a>. However, sometimes it’s difficult to work out cause and effect here. People drink coffee at work, for example, and in social settings with friends so research has to tease out the effects of the coffee and those of the social aspect of sharing time with friends and colleagues. <figure><iframe src="https://www.youtube.com/embed/I9xzgV7z1Bg?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <h2>Chronic diseases</h2> In the long term, moderate coffee consumption can help reduce your risk of developing a host of chronic diseases. 1. Cardiovascular diseases Moderate coffee consumption is associated with a reduced risk of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262944/">heart disease and stroke</a>. Studies indicate that drinking one to two cups of coffee daily may lower the risk of heart failure. Additionally, <a href="https://www.acc.org/About-ACC/Press-Releases/2022/03/23/17/55/Good-News-for-Coffee-Lovers-Daily-Coffee-May-Benefit-the-Heart">coffee consumption</a> has been linked to a lower risk of cardiovascular mortality and disease. Interestingly, even when someone has abnormal heart rhythms, <a href="https://www.heart.org/en/news/2024/03/01/can-people-with-an-irregular-heartbeat-drink-coffee">coffee is not harmful</a> according to <a href="https://www.nejm.org/doi/full/10.1056/NEJMoa2204737">recent</a> data. 2. Type 2 diabetes Coffee may enhance the body’s ability to process glucose, <a href="https://www.sciencedirect.com/science/article/abs/pii/S0939475321002374">reducing the risk</a> of developing type 2 diabetes. Research has shown that people who consume more coffee have a <a href="https://www.healthline.com/health/coffee-s-effect-diabetes">lower likelihood</a> of developing this condition. 3. Liver diseases Coffee seems to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440772/">help protect</a> the liver appears to have protective. Both regular and decaffeinated coffee have been associated with healthier liver enzyme levels, and coffee drinkers have a <a href="https://britishlivertrust.org.uk/coffee-report/">significantly lower risk</a> of liver cirrhosis and liver cancer. 4. Cancer Coffee consumption has been linked to a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9916720/">reduced risk</a> of several other types of cancer, including colorectal and womb cancers. A systematic review found that high coffee consumption is associated with an 18% lower risk of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696634/">cancer</a>. 5. Neurodegenerative diseases <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7773776/">Caffeine</a> is associated with a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353179/">lower risk</a> of developing Parkinson’s disease and may help those with the condition manage their movements better. Additionally, coffee consumption may reduce the risk of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5690364/">Alzheimer’s disease</a> and other forms of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7478584/">dementia</a>. <h2>Mental health</h2> As if the physical benefits aren’t enough, coffee has also been shown to have <a href="https://www.webmd.com/mental-health/news/20230915/moderate-coffee-intake-lowers-risk-of-anxiety--depression">positive</a> effects on <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8467199/">mental health</a>. Studies suggest that coffee drinkers have a lower risk of depression, with some findings indicating a 20% reduced risk of becoming depressed. What’s more, coffee consumption has been associated with a decreased risk of suicide. Research has found that people who drink four or more cups a day are 53% less likely to commit <a href="https://pubmed.ncbi.nlm.nih.gov/23819683/">suicide</a>. <figure><iframe src="https://www.youtube.com/embed/62wEk02YKs0?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <h2>Lifespan</h2> With all these benefits, it’s not surprising that <a href="https://jamanetwork.com/journals/jamainternalmedicine/article-abstract/2686145">research suggests</a> that coffee drinkers tend to live longer than non-drinkers. A large study involving over 400,000 people found that coffee consumption over a period of 12 to 13 years was linked to a lower risk of death – with the strongest effect observed at four to five cups per day. This longevity <a href="https://www.nejm.org/doi/pdf/10.1056/NEJMoa1112010">benefit</a> could be due to the cumulative effects of coffee’s protective properties against various diseases. <h2>Moderation required</h2> While coffee offers numerous <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696634/">health benefits</a>, it is essential to consume it in <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696634/">moderation</a>. It’s also advisable to limit added sugars and creams to avoid unnecessary calorie intake. <a href="https://www.healthline.com/nutrition/caffeine-side-effects">Excessive caffeine</a> intake can lead to negative side effects such as jitteriness, anxiety and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6292246/">sleep disturbances</a>. Some people who are especially sensitive to caffeine may need to limit their coffee intake or avoid it altogether, as even decaffeinated coffee <a href="https://www.healthline.com/nutrition/caffeine-in-decaf">contains caffeine</a>. As with any dietary component, balance is key. By understanding the potential benefits and limitations of coffee, people can make informed decisions about incorporating it into their daily routine. I, for one, will be sticking to my morning cup.<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/236852/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/justin-stebbing-1405462">Justin Stebbing</a>, Professor of Biomedical Sciences, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin 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/all-the-reasons-a-cup-of-coffee-really-can-be-good-for-you-236852">original article</a>. </div>

Body

Think $5.50 is too much for a flat white? Actually it’s too cheap, and our world-famous cafes are paying the price

<a href="https://theconversation.com/profiles/emma-felton-143029">Emma Felton</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Even in a stubborn cost-of-living crisis, it seems there’s one luxury most Australians <a href="https://www.comparethemarket.com.au/news/what-australians-wont-give-up-cost-of-living-crisis-report/">won’t sacrifice</a> – their daily cup of coffee. Coffee sales have largely <a href="https://www.statista.com/statistics/866543/australia-domestic-consumption-of-coffee/">remained stable</a>, even as financial pressures have bitten over the past few years. So too have prices. Though many of us became upset when prices began to creep up last year, they’ve since largely settled in the range between $4.00 and $5.50 for a basic drink. But this could soon have to change. By international standards, Australian coffee prices are low. No one wants to pay more for essentials, least of all right now. But our independent cafes are struggling. By not valuing coffee properly, we risk losing the <a href="https://bizcup.com.au/australian-coffee-culture/">internationally renowned</a> coffee culture we’ve worked so hard to create, and the phenomenal quality of cup we enjoy. <h2>Coffee is relatively cheap in Australia</h2> Our recent survey of Australian capital cities found the average price of a small takeaway flat white at speciality venues is A$4.78. But in <a href="https://pabloandrustys.com.au/blogs/drinkbettercoffee/global-coffee-prices">some international capitals</a>, it’s almost double this, even after adjusting for local <a href="https://www.investopedia.com/updates/purchasing-power-parity-ppp/">purchasing power parity</a>. <iframe id="gaplH" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/gaplH/" width="100%" height="400px" frameborder="0"></iframe> In London, a small flat white costs about A$6.96. Singapore, A$8.42. In Athens, as much as A$9.95. <h2>The cafe business is getting harder</h2> Over the past few decades, coffee prices haven’t kept pace with input costs. In the early 2000s, after wages, food costs, utilities and rent, many cafes <a href="https://www.coffeecommune.com.au/blog-why-are-cafes-so-expensive/">earned healthy profit margins</a> as high as 20%. The <a href="https://www.ibisworld.com/au/industry/cafes-coffee-shops/2015/">most recent data from IBISWorld</a> show that while Australian cafe net profits have recovered from a drop in 2020, at 7.6%, they remain much lower than the Australian <a href="https://www.money.com.au/research/australian-business-statistics">average business profit margin of 13.3%</a>. For an independent owner operating a cafe with the <a href="https://www.ibisworld.com/au/industry/cafes-coffee-shops/2015/">average turnover of A$300,000</a>, this would amount to a meagre A$22,800 annual net profit after all the bills are paid. <h2>What goes into a cup?</h2> Just looking at the cost of raw inputs – milk, beans, a cup and a lid – might make the margin seem lucrative. But they don’t paint the whole picture. <figure class="align-center "><img src="https://images.theconversation.com/files/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&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/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=600&fit=crop&dpr=1 600w, https://images.theconversation.com/files/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=600&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=600&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=754&fit=crop&dpr=1 754w, https://images.theconversation.com/files/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=754&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/584949/original/file-20240328-24-rlngpk.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=754&fit=crop&dpr=3 2262w" alt="A takeaway coffee cup showing the price inputs, with wages and operation costs making up over 65% of the cost of a coffee" /><figcaption>Chart: The Conversation. <a class="source" href="https://pabloandrustys.com.au/blogs/drinkbettercoffee/whats-in-the-cost-of-coffee">Data: Pablo and Rusty's Coffee Roasters</a>, <a class="license" href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA</a></figcaption></figure> Over the past few years, renting the building, keeping the lights on and paying staff have all become <a href="https://www.reuters.com/business/ground-down-australia-coffee-shops-an-early-inflation-casualty-2023-07-10/">much bigger factors</a> in the equation for coffee shop owners, and many of these pressures aren’t easing. 1. Green coffee price Increasingly <a href="https://www.aa.com.tr/en/environment/brewing-crisis-how-climate-change-is-reshaping-coffee-production/3113886">subject to the effects</a> of climate change, the baseline commodity price of green (unroasted) coffee is <a href="https://perfectdailygrind.com/2024/02/demand-for-robusta-prices-record-high/">going up</a>. Arabica – the higher quality bean you’re most likely drinking at specialty cafes – is a more expensive raw product. Despite levelling off from post-pandemic highs, its price is still trending up. In 2018, it <a href="https://www.statista.com/statistics/675807/average-prices-arabica-and-robusta-coffee-worldwide/">sold</a> for US$2.93 per kilogram, which is projected to increase to US$4.38 dollars in 2025. Robusta coffee is cheaper, and is the type <a href="https://www.lavazza.com.au/en/coffee-secrets/difference-type-arabica-robusta-coffee">typically used to make instant coffee</a>. But serious drought in Vietnam has just pushed the price of robusta to an <a href="https://www.barchart.com/story/news/25094367/coffee-rallies-with-robusta-at-a-record-high-on-shrinking-coffee-output-in-vietnam">all-time high</a>, putting pressure on the cost of coffee more broadly. 2. Milk prices The price of fresh milk has risen by <a href="https://cdn-prod.dairyaustralia.com.au/-/media/project/dairy-australia-sites/national-home/resources/reports/situation-and-outlook/situation-and-outlook-report-march-2024.pdf?rev=b0222df4b01b40d0ae36cf8ac7b01bc0">more than 20%</a> over the past two years, and remains at a peak. This has put sustained cost pressure on the production of our <a href="https://gitnux.org/australian-coffee-consumption-statistics/#:%7E:text=Coffee%20is%20a%20beloved%20beverage,approximately%206%20billion%20cups%20annually.">most popular drink orders</a>: cappuccinos and flat whites. 3. Wages and utilities Over the past year, Australian wages have grown at their <a href="https://ministers.treasury.gov.au/ministers/jim-chalmers-2022/media-releases/real-wages-growth-back">fastest rate</a> since 2009, which is welcome news for cafe staff, but tough on operators in a sector with low margins. Electricity prices remain elevated after significant inflation, but could <a href="https://www.sbs.com.au/news/article/heres-how-much-your-energy-bills-might-go-down-by-and-when/k8g00jheg">begin to fall mid-year</a>. <h2>Specialty vs. commodity coffee: why price expectations create an industry divide</h2> One of the key factors keeping prices low in Australia is consumer expectation. For many people coffee is a fundamental part of everyday life, a marker of livability. Unlike wine or other alcohol, coffee is not considered a luxury or even a treat, where one might expect to pay a little more, or reduce consumption when times are economically tough. We anchor on familiar prices. <iframe id="oDbah" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/oDbah/" width="100%" height="400px" frameborder="0"></iframe> Because of this, it really hurts cafe owners to put their prices up. In touch with their customer base almost every day, they’re acutely aware of how much inflation can hurt. But in Australia, a huge proportion of coffee companies are also passionate about creating a world-class product by only using “<a href="https://medium.com/@samandsunrise/why-is-specialty-coffee-so-expensive-6cf298935e4b#:%7E:text=Specialty%20Shops%20Feature%20High%20Grade%20Coffees&text=Their%20coffees%20are%20hand%2Dpicked,even%20on%20the%20same%20tree.">specialty coffee</a>”. Ranked at least 80 on a quality scale, specialty beans cost significant more than commodity grade, but their production offers better working conditions for farmers and encourages more sustainable growing practices. Although not commensurate with the wine industry, there are similarities. Single origin, high quality beans are often sourced from one farm and demand higher prices than commodity grade coffee, where cheaper sourced beans are often combined in a blend. Running a specialty cafe can also mean roasting your own beans, which requires a big investment in expertise and equipment. It’s an obvious example of doing the right thing by your suppliers and customers. But specialty cafes face much higher operating costs, and when they’re next to a commodity-grade competitor, customers are typically unwillingly to pay the difference. <h2>Approach price rises with curiosity, not defensiveness</h2> When cafe owners put up their prices, we often rush to accuse them of selfishness or profiteering. But they’re often just trying to survive. Given the quality of our coffee and its global reputation, it shouldn’t surprise us if we’re soon asked to pay a little bit more for our daily brew. If we are, we should afford the people who create one of our most important “<a href="https://theconversation.com/how-cafes-bars-gyms-barbershops-and-other-third-places-create-our-social-fabric-135530">third spaces</a>” kindness and curiosity as to why. <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/226015/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/emma-felton-143029">Emma Felton</a>, Adjunct Senior Researcher, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Image credits: Getty Images 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/think-5-50-is-too-much-for-a-flat-white-actually-its-too-cheap-and-our-world-famous-cafes-are-paying-the-price-226015">original article</a>.

Money & Banking

"Offer is on the table": New James Bond actor revealed

In a world where the only constant is change, one thing remains certain: James Bond will always be suave, sophisticated, and British. The search for the next 007 has been a rollercoaster of speculation, rumours and hopes dashed faster than a villain's escape plan. But now the wait appears to be over. The man most likely in line to be the next James Bond has been revealed, and his name is Taylor-Johnson ... Aaron Taylor-Johnson. According to a report from <a href="https://www.thesun.co.uk/tv/26774029/aaron-taylor-johnson-offered-role-james-bond/" target="_blank" rel="noopener">The Sun</a> on Tuesday, Eon Productions, the brilliant minds behind the iconic spy franchise, appear to have finally settled on their man. According to sources as reliable as Bond's impeccable taste in martinis, Taylor-Johnson is set to don the tuxedo and wield the Walther PPK in the next instalment of the series. Well, at least if he accepts the offer. “Bond is Aaron’s job, should he wish to accept it," The Sun reported. "The formal offer is on the table and they are waiting to hear back. “As far as Eon is concerned, Aaron is going to sign his contract in the coming days and they can start preparing for the big announcement.” Now, some of you might be scratching your heads, wondering, "Aaron who?" Aaron Taylor-Johnson is an English actor, which automatically makes him qualified for the role. Plus, he's been in action films like Tenet, Bullet Train and Avengers: Age of Ultron. So, he's no stranger to high-stakes thrills and spills. Also, did we mention he's British? Because that's kind of a prerequisite. At 33 years of age, Taylor-Johnson would be the youngest actor to step into Bond's impeccably polished shoes since George Lazenby back in 1969. Talk about big shoes to fill. But if anyone can handle the pressure, it's our man Aaron. Now, some purists might be clutching their martini glasses in horror, lamenting the departure of Daniel Craig, who graced our screens for five thrilling films. But fear not, for change is the spice of life, and if there's one thing Bond knows how to handle, it's change. Besides, who wouldn't want to see what Taylor-Johnson brings to the table? Maybe he'll introduce a new signature drink or a quirky catchphrase. The possibilities are as endless as Bond's list of conquests. The response to The Sun's announcement has caused a few reactions across the globe, with 9News reporting that "A source with knowledge of the situation tells CNN that Johnson has not been cast as Bond. And, BBC News reports that a 'production insider' said there is no truth to the rumours about Taylor-Johnson's casting." So, as we eagerly await the official announcement from Eon Productions, let us raise our glasses to Aaron Taylor-Johnson, the next suave superspy set to save the world, one shaken, not stirred, adventure at a time. Images: Getty / Twitter (X)

Movies

Should you be worried about the amount of coffee or tea you drink?

Before you reach for that cup of coffee or tea, have you ever thought about whether that caffeinated beverage is <a href="https://cosmosmagazine.com/health/body-and-mind/debunks-vices-coffee-caffeine/">good or bad for you</a>? <iframe title="Vices: Is coffee good or bad for you?" src="https://omny.fm/shows/debunks/vices-is-coffee-good-or-bad-for-you/embed?style=Cover" width="100%" height="180" frameborder="0"></iframe> Most of us will drink coffee or tea each day. It helps keep us alert, especially in a world of the nine-to-five grind. Some workers rely on caffeine to get them through shift work and night shifts. Many, like me, would just collapse in a heap if it weren’t for that liquid black gold to keep us peppy in the morning. <h2 class="wp-block-heading">What is caffeine?</h2> To get a better picture of how coffee or tea affects us, let’s examine the active ingredient: <a href="https://cosmosmagazine.com/podcast/huh-science-explained-stirring-the-science-of-caffeine/">caffeine</a>. Caffeine is a <a href="https://www.betterhealth.vic.gov.au/health/healthyliving/caffeine" target="_blank" rel="noopener">drug</a>. It’s a white, odourless substance known to chemists as 1,3,7-trimethylxanthine and is made up of 8 carbon, 10 hydrogen, 4 nitrogen and 2 oxygen atoms. Caffeine occurs naturally in coffee beans, cocoa beans, kola nuts, and tea leaves. It is an adenosine antagonist, blocking the A1, A2A, and A2B receptors in the brain and body to promote wakefulness. Normally, adenosine (a chemical compound with a similar 3D structure to caffeine) binds to its receptors, slowing neural activity and making you sleepy. When caffeine, instead, binds to the receptors, adenosine is blocked and brain activity speeds up, making you feel more alert. <h2 class="wp-block-heading">History lesson</h2> Tea and coffee are the most common way for humans to get their caffeine fix. Drinks made using coffee beans date back more than a thousand years to the coffee forests of the horn of Africa. Legend says that, around 800 CE, an Ethiopian goat herder named Kaldi noticed his goats were energetic and didn’t sleep when they ate the coffee beans. Coffee then spread eastward to the Arabian Peninsula, reaching Yemen in the 15th century, and Egypt, Syria, Persia and Turkey in the 1500s. From their it made it to Europe and eventually the whole world. But caffeine is also present in other beverages like tea, cola and even some foods like chocolate. <h2 class="wp-block-heading">Is it bad for you?</h2> Given how prevalent the drug is, are there negative side effects we should be worried about? For one thing, it is an addictive substance. And the more you drink, the more you need. “Our body tends to adjust to a new level of consumption,” Kitty Pham, a PhD candidate at the University of South Australia and expert in nutritional and genetic epidemiology, tells Cosmos. “Your body does develop a tolerance to the caffeine. So, you start to need to drink more and more to feel the same effect as before.” Caffeine can also act as an anxiogenic – a substance that can trigger heightened levels of anxiety. Pham notes some risks associated with too much caffeine consumption over a long period of time. “Greater than 6 cups per day, we did see an increase in dementia risk,” she notes. “There’s also some research on how it might increase your cholesterol. There’s a substance in coffee called cafestol that can regulate your blood cholesterol. If you’re drinking too much coffee, it might be increasing your cholesterol. So, there are risks, but often they are at really high consumption.” <h2 class="wp-block-heading">What’s the limit?</h2> So, how much caffeine is too much according to science? “That’s, the million-dollar question, isn’t it?” Pham laughs. “There’s a lot of varying research on it. It’s hard to tell a definite limit. But generally, most studies really agree that one to two cups of coffee, or an equivalent of 100 to 200 milligrams of caffeine is safe and okay.” The average cup of coffee has about 100 mg of caffeine. On average, instant coffee with one teaspoon of powder contains about 70 mg of caffeine, while a coffee pod has 60–90 mg. Other drinks containing might have even more caffeine, making it important to monitor your consumption more carefully. A 355 mL can of Red Bull energy drink has more than 110 mg of caffeine. Meanwhile, an average bar of dark chocolate has about 70 mg of caffeine. Many people are moving away from coffee to drinks like tea and matcha which may have <a href="https://cosmosmagazine.com/health/flavonoids-black-tea/">additional</a> <a href="https://cosmosmagazine.com/health/tea-drinkers-may-well-live-longer/">health</a> <a href="https://cosmosmagazine.com/health/black-tea-mortality-risk/">benefits</a>. A 100-gram cup of black tea has only about 20 mg of caffeine, while matcha can have 140–170 mg of caffeine! “Looking at the US, they usually recommend less than 400 milligrams. So overall, moderation and keeping your consumption to one to two cups – that’s what I’d recommend.” Now that I’ve written about caffeine, I think I need another cuppa. It’s only my second of the day, I swear. Image credits: Getty Images <div> <h3><a href="https://link.cosmosmagazine.com/JQ4R"><noscript data-spai="1"><img decoding="async" class="alignleft size-full wp-image-198773" src="https://cdn.shortpixel.ai/spai/ret_img/cosmosmagazine.com/wp-content/uploads/2023/04/Apple-Podcasts.svg" data-spai-egr="1" alt="Subscribe to our podcasts" width="300" height="54" title="should you be worried about the amount of coffee or tea you drink? 2"></noscript></a><a href="https://link.cosmosmagazine.com/JQ4U"><noscript data-spai="1"><img decoding="async" class="alignleft size-full wp-image-198773" src="https://cdn.shortpixel.ai/spai/ret_img/cosmosmagazine.com/wp-content/uploads/2023/04/Spotify.svg" data-spai-egr="1" alt="Subscribe to our podcasts" width="300" height="54" title="should you be worried about the amount of coffee or tea you drink? 3"></noscript></a></h3> </div>  <a href="https://cosmosmagazine.com/health/body-and-mind/coffee-tea-caffeine-debunks/">This article</a> was originally published on <a href="https://cosmosmagazine.com">Cosmos Magazine</a> and was written by <a href="https://cosmosmagazine.com/contributor/evrim-yazgin/">Evrim Yazgin</a>.

Body

How is decaf coffee made? And is it really caffeine-free?

<a href="https://theconversation.com/profiles/lauren-ball-14718">Lauren Ball</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/emily-burch-438717">Emily Burch</a>, <a href="https://theconversation.com/institutions/southern-cross-university-1160">Southern Cross University</a> Coffee is one of the most popular drinks in the world, and its high levels of caffeine are among the main reasons why. It’s a natural stimulant that provides an energy buzz, and we just can’t get enough. However, some people prefer to limit their caffeine intake <a href="https://pubmed.ncbi.nlm.nih.gov/12684194/">for health</a> or other reasons. Decaffeinated or “decaf” coffee is widely available, and its consumption is reported to be <a href="https://www.coffeebeanshop.com.au/coffee-blog/decaf-coffee-market-worth-2145-billion-by-2025-at-69">on the rise</a>. Here’s what you need to know about decaf coffee: how it’s made, the flavour, the benefits – and whether it’s actually caffeine-free. <h2>How is decaf made?</h2> Removing caffeine while keeping a coffee bean’s aroma and flavour intact isn’t a simple task. Decaf coffee is made by stripping green, unroasted coffee beans of their caffeine content and relies on the fact that <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318762/#:%7E:text=Caffeine%20(Figure%201a)%20being,(15%20g%2FL).">caffeine dissolves</a> in water. Three main methods are used for removing caffeine: chemical solvents, liquid carbon dioxide (CO₂), or plain water with special filters. The additional steps required in all of these processing methods are why decaf coffee is often more expensive. <h2>Solvent-based methods</h2> Most decaf coffee is made using <a href="https://www.tandfonline.com/doi/epdf/10.1080/10408699991279231?needAccess=true">solvent-based</a> methods as it’s the cheapest process. This method breaks down into two further types: <a href="https://www.sciencedirect.com/science/article/abs/pii/B9780123849472001835">direct and indirect</a>. The direct method involves steaming the coffee beans and then repeatedly soaking them in a chemical solvent (usually methylene chloride or ethyl acetate) which binds to the caffeine and extracts it from the beans. After a pre-determined time, the caffeine has been extracted and the coffee beans are steamed once more to remove any residual chemical solvent. The indirect method still uses a chemical solvent, but it doesn’t come into direct contact with the coffee beans. Instead, the beans are soaked in hot water, then the water is separated from the beans and treated with the chemical solvent. The caffeine bonds to the solvent in the water and is evaporated. The caffeine-free water is then returned to the beans to reabsorb the coffee flavours and aromas. The solvent chemicals (particularly methylene chloride) used in these processes are a source of controversy around decaf coffee. This is because <a href="https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/dichloromethane">methylene chloride</a> is suggested to be mildly carcinogenic in high doses. Methylene chloride and ethyl acetate are commonly used in paint stripper, nail polish removers and degreaser. However, both the <a href="https://www.foodstandards.gov.au/code/pages/default.aspx">Australian New Zealand Food Standards Code</a> and <a href="https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/cfrsearch.cfm?fr=173.255">the United States Food and Drug Administration</a> permit the use of these solvents to process decaf. They also have strict limits on the amount of the chemicals that can still be present on the beans, and in reality <a href="https://www.chemicals.co.uk/blog/how-dangerous-is-methylene-chloride">practically no solvent</a> is left behind. <h2>Non-solvent-based methods</h2> Non-solvent-based methods that use liquid carbon dioxide or water are becoming increasingly popular as they don’t involve chemical solvents. In the <a href="https://www.tandfonline.com/doi/pdf/10.1080/10408699991279231">CO₂ method</a>, liquid carbon dioxide is pumped into a high-pressure chamber with the beans, where it binds to the caffeine and is then removed through high pressure, leaving behind decaffeinated beans. The water method (also known as the Swiss water process) is exactly what it sounds like – it <a href="http://publication.eiar.gov.et:8080/xmlui/bitstream/handle/123456789/3234/ECSS%20Proceeding%20Final.pdf?sequence=1#page=294">involves extracting caffeine</a> from coffee beans using water. There are variations on this method, but the basic steps are as follows. For an initial batch, green coffee beans are soaked in hot water, creating an extract rich in caffeine and flavour compounds (the flavourless beans are then discarded). This green coffee extract is passed through activated charcoal filters, which trap the caffeine molecules while allowing the flavours to pass through. Once created in this way, the caffeine-free extract can be used to soak a new batch of green coffee beans – since the flavours are already saturating the extract, the only thing that will be dissolved from the beans is the caffeine. <figure><iframe src="https://www.youtube.com/embed/8531vyP7Z5U?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <h2>Is caffeine fully removed from decaf?</h2> Switching to decaf may not be as caffeine free as you think. It is unlikely that 100% of the caffeine will be successfully <a href="https://pubmed.ncbi.nlm.nih.gov/8603790/">stripped from the coffee beans</a>. Just like the caffeine content of coffee can vary, some <a href="https://pubmed.ncbi.nlm.nih.gov/17132260/">small amounts</a> of caffeine are still present in decaf. However, the amount is quite modest. You would need to drink more than ten cups of decaf to reach the caffeine level typically present in <a href="https://academic.oup.com/jat/article/30/8/611/714415">one cup of caffeinated coffee</a>. Australia <a href="https://www.foodstandards.gov.au/code/Documents/1.1.2%20Definitions%20v157.pdf">does not require</a> coffee roasters or producers to detail the process used to create their decaf coffee. However, you might find this information on some producers’ websites if they have chosen to advertise it. <h2>Does decaf coffee taste different?</h2> Some people say decaf tastes different. Depending on how the beans are decaffeinated, some aromatic elements may be co-extracted with the caffeine <a href="https://pubmed.ncbi.nlm.nih.gov/23745606/">during the process</a>. Caffeine also contributes to the bitterness of coffee, so when the caffeine is removed, so is <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8948847/">some of the bitterness</a>. <h2>Do caffeinated and decaf coffee have the same health benefits?</h2> The health benefits found for drinking decaf coffee are similar to that of caffeinated coffee, including a lower risk of type 2 diabetes, some cancers and overall <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696634/">mortality</a>. More recently, coffee has been linked with improved weight management over time. Most of the health benefits have been shown by drinking <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696634/">three cups</a> of decaf per day. Moderation is key, and remember that the greatest health benefits will come from having a <a href="https://theconversation.com/what-is-a-balanced-diet-anyway-72432">balanced diet</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/215546/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/lauren-ball-14718">Lauren Ball</a>, Professor of Community Health and Wellbeing, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/emily-burch-438717">Emily Burch</a>, Dietitian, Researcher & Lecturer, <a href="https://theconversation.com/institutions/southern-cross-university-1160">Southern Cross University</a> Image credits: Getty Images 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-is-decaf-coffee-made-and-is-it-really-caffeine-free-215546">original article</a>.

Food & Wine

Can coffee help you avoid weight gain? Here’s what the science says

<a href="https://theconversation.com/profiles/lauren-ball-14718">Lauren Ball</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/emily-burch-438717">Emily Burch</a>, <a href="https://theconversation.com/institutions/southern-cross-university-1160">Southern Cross University</a> Coffee is well recognised as having a positive impact on long-term health. Drinking the equivalent of three to four cups of instant coffee a day <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696634/">reduces the risk</a> of many health conditions including heart disease, type 2 diabetes and some cancers. Most people gain <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4984841/">small amounts of weight</a> each year as they age. But can coffee help prevent this gradual weight gain? A group of researchers examined whether drinking an extra cup of coffee a day – or adding sugar, cream or a non-dairy alternative – resulted in more or less weight gain than those who didn’t adjust their intake. Their <a href="https://www.sciencedirect.com/science/article/abs/pii/S0002916523661702">research</a> (currently a pre-proof, which means it has been peer reviewed but is yet to undergo the final formatting and copyediting) found a modest link between coffee and gaining less weight than expected. People who drank an extra cup of coffee a day gained 0.12 kg less weight than expected over four years. Adding sugar resulted in a fraction more (0.09 kg) weight gain than expected over four years. <h2>How was the study conducted? What did it find?</h2> Researchers combined data from three large studies from the United States: two <a href="https://nurseshealthstudy.org">Nurses’ Health Studies</a> from 1986 to 2010, and from 1991 to 2015, and a <a href="https://www.hsph.harvard.edu/hpfs/about-the-study/">Health Professional Follow-up study</a> from 1991 to 2014. The Nurses’ Health Studies are two of the largest cohort studies, with more 230,000 participants, and investigates chronic disease risks for women. The Health Professional Follow-up study involves more than 50,000 male health professionals and investigates the relationship between diet and health outcomes. Participants in all three studies completed a baseline questionnaire, and another questionnaire every four years to assess their food and drink intake. Using the combined datasets, researchers analysed changes in coffee intake and changes in the participants’ self-reported weight at four-year intervals. The average four year weight-gains for the nurses’ studies were 1.2kg and 1.7kg, while participants in the health professionals study gained an average of 0.8kg. The researchers found that increasing unsweetened caffeinated or decaffeinated coffee intake by one cup a day was associated with a weight gain that was 0.12 kg less than expected over four years. Adding creamer (milk) or a non-dairy alternative did not significantly affect this weight change. However, adding sugar (one teaspoon) to coffee was associated with a weight gain that was 0.09 kg more than expected over four years. These associations were stronger in participants who were younger and had a higher body mass index at the beginning of the studies. <h2>What are the pros and cons of the study?</h2> This study is unique in two ways. It had a very large sample size and followed participants for many years. This adds confidence that the associations were real and can likely be applied to other populations. However, there are three reasons to be cautious. First, the findings represent an association, not causation. This means the study does not prove that coffee intake is the true reason for the weight change. Rather, it shows the two changes were observed together over time. Second, the findings around weight were very modest. The average four-year weight gain averted, based on one cup of coffee, was 0.12 kilograms, which is about 30 grams per year. This amount may not be a meaningful change for most people looking to manage weight. Finally, this analysis did not consider the variability in the amount of caffeine in coffee (which we <a href="https://pubmed.ncbi.nlm.nih.gov/17412475/">know can be high</a>), it just assumed a standard amount of caffeine per cup. <h2>How could coffee help with weight management?</h2> Caffeine is a natural stimulant which has been <a href="https://www.sciencedirect.com/science/article/pii/S0149763416300690">shown to</a> temporarily reduce appetite and increase alertness. This may help to feel less hungry for a short period, potentially leading to reduced energy intake. Some people consume coffee before exercise as a stimulant to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7777221/">improve their workout performance</a> – if a workout is more effective, more energy may be expended. However, the benefit is largely thought to be short-lived, rather than long-term. Caffeine has also been <a href="https://www.sciencedirect.com/science/article/pii/S0271531720304449">shown to</a> speed up our metabolism, causing more energy to be burned while resting. However, this effect is relatively small and is not a suitable substitute for regular physical activity and a healthy diet. Finally, coffee has a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4725310/">mild diuretic effect</a>, which can lead to temporary water weight loss. This is water loss, not fat loss, and the weight is quickly regained when you re-hydrate. <h2>Is it worth trying coffee for weight loss?</h2> Losing weight can be influenced by various factors, so don’t get too enthusiastic about the coffee-weight link highlighted in this new study, or increase your coffee intake to unreasonable levels. Most adults can safely consume around <a href="https://www.healthdirect.gov.au/caffeine">400mg</a> of caffeine a day. That’s the equivalent of two espressos or four cups of instant coffee or eight cups of tea. If you are pregnant or breastfeeding, it is important to talk to your doctor before increasing your caffeine intake, because caffeine can be passed through to your growing baby. If you need individualised weight guidance, talk to your GP or visit an <a href="https://member.dietitiansaustralia.org.au/Portal/Portal/Search-Directories/Find-a-Dietitian.aspx">accredited practising dietitian</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/214954/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/lauren-ball-14718">Lauren Ball</a>, Professor of Community Health and Wellbeing, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/emily-burch-438717">Emily Burch</a>, Dietitian, Researcher & Lecturer, <a href="https://theconversation.com/institutions/southern-cross-university-1160">Southern Cross University</a> Image credits: Getty Images 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/can-coffee-help-you-avoid-weight-gain-heres-what-the-science-says-214954">original article</a>.

Body

Here’s what would happen to your body if you didn’t have your morning coffee

What happens when you skip coffee entirely? Coffee is a morning constant for many, as reliable as the sunrise or the tides. Miss it, and you can feel dazed, confused and even risk a pounding headache. There’s a good reason for that: Caffeine produces some reliable physical changes in your body upon which you can easily become dependent. With that first sip of coffee, caffeine enters your bloodstream and begins making its way to your brain where it blocks an inhibitory neurotransmitter called adenosine, according to the National Academy of Sciences. That, in turn, sets off the release of feel-good hormones like dopamine and serotonin, causing a stimulant effect. Coffee’s so-called half-life – meaning the amount of time it takes for the amount of caffeine in the body to be reduced by 50 per cent – is about five hours on average. That explains why the average energy drink or coffee buzz lasts about that long. But how quickly caffeine leaves your system depends on a number of things, including age, medical conditions, drug interactions and lifestyle habits (like smoking). A shock to the system So, no surprise, when you’re deprived of your morning coffee, you don’t just suffer due to routine alteration. You suffer chemically, too. As anybody who’s kicked their coffee habit will tell you: The side effects can be pretty noticeable and jarring. Some of the more common symptoms of caffeine withdrawal stem from the inherent perks of those multi cups of Joe. Minus the kickstart to your metabolism, you’ll feel tired, sluggish, foggy-headed, and physically delayed, according to a review of studies published in 2020 in StatPearls. Researchers found that the more caffeine you consume, the more severe the withdrawal; but abstinence from even small amounts – we’re talking one cup of coffee per day – also produced symptoms of caffeine withdrawal. They kick in 12 to 24 hours after your last caffeine fix and may last up to nine days, says Dr Sherry A Ross, women’s health expert, author of She-ology: The She-quel. “Caffeine is a stimulating drug that some people can easily become addicted to,” she explains. “Depending on the quantity and type of caffeine you are consuming daily, your body type and frequency of consumption can set you up for a caffeine addiction.” Coffee's not all bad Just because you can develop a dependence on your morning jolt doesn’t mean that cup of java belongs on the do-not-consume list. Just the opposite, in fact. A large review of studies published in 2017 in the journal BMJ found that coffee consumption is not only safe for most people (except pregnant women and women who are at an increased risk of fracture), it also provides a number of health benefits, especially for people with chronic liver disease. The review also showed that participants who consistently drank at least three cups of coffee per day had a lower risk of type 2 diabetes, kidney disease, gallstone disease, cancer (including melanoma, leukaemia and prostate, endometrial, oral, and liver cancer), as well as cardiovascular disease, coronary heart disease and stroke as compared with coffee abstainers. The trick, of course, is practicing portion control. The researchers found that the health benefits of coffee top out at three to four cups a day (as compared to none). That echoes the larger caffeine recommendation from the US Food and Drug Administration, which suggests no more than 400 mg of caffeine per day; that’s the amount in about four cups of coffee, 10 cans of cola, or two energy drinks. Image credits: Getty Images This article originally appeared on <a href="https://www.readersdigest.com.au/healthsmart/heres-what-would-happen-to-your-body-if-you-didnt-have-your-morning-coffee" target="_blank" rel="noopener">Reader's Digest</a>.

Food & Wine

Maccas hit the road with a coffee lovers dream giveaway

McDonald’s are celebrating the 30 year anniversary of the world’s first McCafé - right at home in Melbourne - in style, offering up a special treat for caffeine lovers all along the east coast of Australia. With the McCafé van tour, the party hit the road, and the second stop of the trip gives Sydneysiders a chance to get in on the fun, and to enjoy the benefits of their very own free coffee - all they have to do is swing by Mrs Macquarie’s Chair in the Royal Botanic Garden on Tuesday 30 May between the hours of 5:30am to 2:00pm. And for those who don’t fancy the early start - or simply crave something a little sweeter - have no fear, because McCafé’s all over are introducing the<a href="https://mcdonalds.com.au/menu/birthday-cake-flavoured-latte"> limited-time Birthday Cake flavoured latte</a>. The delicious new treat can be enjoyed both hot and cold to delight all taste buds, and boasts McCafé’s “signature smooth and rich blend combined with delicious cake flavours”. And if there’s one thing McCafé knows, it’s how to make a good coffee, with 1,026 establishments across Australia, and a further 4,000 in 60 other countries. All of which work together to serve more than 230 million cups of coffee - barista made, of course - and other hot drinks each year, with a staggering one in every four coffees sold in Australia coming from none other than a McCafé. “One of the innovations we’re most proud of at McDonald’s Australia is McCafé,” Lancy Huynh - Group Brand Manager for McDonald’s Australia - explained, “a homegrown idea that has turned into a global success. “McCafé changed McDonald’s approach to coffee across the world – inventing a new way of serving our customers and defining what it means to offer great-quality, barista-made coffee in our restaurants. “With over 1,000 locations in Australia, McCafé is now one of the largest coffee retailers in the country, representing an impressive one in every four coffees sold in Australia. “It’s a brand that was created by coffee lovers for coffee lovers, so we are extremely proud to celebrate this milestone with the experts that helped shape it – our customers right here in Australia.” And Sydney isn’t the only city blessed with the opportunity to snag one of those impressive blends during this milestone celebration, with <a href="https://mcdonalds.com.au/sites/mcdonalds.com.au/files/230522_McCafe%CC%81%20celebrates%2030%20years_FINAL%20%281%29.pdf">the van tour set to swing by Brisbane and Townsville in the coming weeks</a>, having already completed its Melbourne run. “We are excited to hit the road and celebrate McCafé’s 30th anniversary with the coffee lovers that helped shape it – our customers right here in Australia,” Lancy Huynh explained. “Over the next few weeks, the McCafé coffee van will give away free coffee … to thank our customers for their loyalty and support over the last 30 years. “We look forward to meeting our customers across the east coast and fuelling them up with our great quality, barista-made coffee.” Images: McDonald’s [supplied]

Food & Wine

“Coffee that makes people cry”: Sydney cafe charges $1500 for a single brew

For most people, forking out $5 for a cup of coffee is to be expected, even threatening a daily budget in the midst of Australia’s cost of living crisis. But for one Western Sydney cafe and its wealthier clientele, that $5 has shot to $1500. Penrith’s Brew Lab Cafe is the place to be for coffee lovers seeking Australia’s “rarest coffee” in a unique after-hours experience that’s available by appointment only. As for why the beans set customers back so much, they’re apparently found growing at the base of a Panamanian volcano that’s 1700 metres above sea level, rating well above a 90 - which apparently signifies that they’re some of the best when it comes to coffee beans. And to top it all off, they fly first class. There’s a precise formula behind brewing the coffee, too, with pre-dampened filter paper, water boiled to 94 degrees, and carefully timed “pour over” sessions. It’s intended to be served black, with no additional sweeteners or flavours. “We order it once the customer has,” the cafe’s owner and barista Mitch Johnson told 9News. “We then get in contact with the guys in Panama, they’ll roast the order individually, and then they’ll send it over on their private jet.” However, for those hoping for a hit of coffee flavour from their brew, they may find themselves a little disappointed. As Johnson explained, “most people when they drink it, say their first impression is that it's more like a tea than a coffee.” Unsurprisingly, they don’t see an awful lot of people flocking in to hand over $1500, but apparently do get “quite a few coming in once a week to try our $100 or $200 coffees. "It's not rare for us at all. There is an underground coffee scene in Sydney that is actively pursuing exotic brews such as this.” When speaking to The Daily Telegraph about their offering, Johnson added that it wasn’t just about the coffee itself, noting that “this is an after-hours experience, only served one-on-one where we close the doors and talk the person through the process. “This particular coffee, you drink it as it cools down and the flavours change and evolve, giving way to tastes of peach, strawberry, lemonade, rose and juniper. “It’s an exceptional coffee, the kind of coffee that makes people cry, I know that sounds crazy but it’s happened, it’s brought them to tears.” Images: 9News / Nine

Domestic Travel

13 unusual uses for coffee filters

If you enjoy a cup of the caffeinated stuff of a morning, chances are good you probably have a packet or two of coffee filters knocking around in the pantry. While essential for creating the perfect brew, the simple shape and lint-free design of this beverage essential makes them useful in plenty of other places around the house. <ol> <li>Use them to protect your dishes – Protect your favourite plates or good china from chipping and scratches by slipping a single filter in between each when stacking.</li> <li>Savvy snacking – If you’re serving up something greasy or even a finger food snack, a coffee filter makes the perfect snack bowl. Added bonus? No washing up!</li> <li>Sparkling windows and mirrors – The lint-free design of coffee filters make them perfect for cleaning fragile surfaces.</li> <li>In the garden – When filling up pots with soil, place a filter in the bottom, over the water hole. This allows water to filter through but stops soil seeping out.</li> <li>Smart storage – Lots of loose odds and ends floating around? Corral them all together by using a filter to group similar objects.</li> <li>Clean your screens – Dusty TV or computer screen? A coffee filter is great for grabbing dust and grime from smooth surfaces.</li> <li>The key to micro-sieving – If you’re baking and need a super fine sieve, line your standard utensil with a filter to catch even the smallest particles of food.</li> <li>Ice block savior- Stop sticky fingers in the grandkids by snipping a hole in the centre of a filter and pushing the stick through to create a little “drip dish”.</li> <li>Grease your baking utensils – Ensure a lint free, well-greased surface by using a filter to grease your baking tins or trays.</li> <li>Create spotless glassware – Prevent unsightly streaks by using a filter to dry your glassware.</li> <li>Keep your microwave clean – Use a filter when heating leftovers in the microwave to prevent splatter.</li> <li>Absorb oil – Cooking bacon? Pop the finished product onto a filter to drain away excess oil.</li> <li>Streak free stainless steel – Filters work like magic on stainless steel appliances like your toaster as well as taps and fixtures.</li> </ol> Image credits: Getty Images

Home & Garden

“It tastes like rich”: Hotel sells $32 coffee with gold sprinkles

At the Emirates Palace in Abu Dhabi, you can treat yourself to a cappuccino for a whopping $32AUD, although you’re not really paying for the coffee alone. The cappuccino, which is found at the hotel’s Le Cafe by the Fountain comes with 23-karat gold sprinkled on top and it has been named the Emirates Palace Golden Cappuccino. The pricey cap is not the only item on the menu that is embellished with gold, with the hotel advertising a camel milk vanilla or chocolate ice cream with a 23-karat gold leaf for $29. In the mood for a cold drink? The Emirates Palace has got you covered with their Hawaiian Candy Colada, a mocktail topped with 23-karat gold flakes for $26. Tourists have shared videos on social media, with one showing a barista shaking a can of gold flakes over a row of cappuccinos, much like one would with the average cocoa powder topping. Another video posted by a worker shows her adding gold flakes with a spoon. One TikToker who got to try the luxurious coffee wrote, “The gold cappuccino was 8/10 but the vibes were 100/10.” One user wrote, “It tastes like rich.” Another agreed, writing “It tastes expensive.” A Canadian coffee content creator, Brodie Vissers, better known as The Nomad Barista online reviewed the hotel’s cappuccino on YouTube. “Our drinks have arrived, I’m a little bit nervous. It used to be 24-karat, now they’ve reduced it to 23-karat but it is still gold sprinkled on this coffee,” he said. “I don’t even know what to expect from this drink,” he said before trying the luxurious drink. “It’s actually not bad. Of course the foam on the latte is not like a perfect flat white or anything. It’s actually not as sweet as I expected. It’s got a nice balance to it. It’s an interesting drink. “We cannot forget about the dates. Having dates with coffee is a very traditional thing here in the Middle East. “Let’s see how that pairs with the latte. Wow, that is so good. I recommend it if you’re around. It’s a kind of unique opportunity here in (Emirates) Palace. What better place to drink coffee with gold on top.” Image credit: Instagram

Food & Wine

3 surprising health and beauty benefits of coffee beans

Ah, coffee - who doesn't love to start the day without a cup! You'll be delighted to hear that coffee beans also have a plethora of beneficial uses. For starters, coffee beans can also improve hair and skin. Hello bright eyes These days, lots of trageted eye creams contain caffeine for its ability to decrease puffiness. Failing buying a new cream, why not try and little beauty DIY. Simply soak a cotton pad, ball or some clean gauze in some cool coffee water and relax with it on your eyes for at least 10 minutes but no more than half an hour. Wake up skin Not only can coffee brighten your comlexion, because of antioxidants and acids it has also been shown to diminish fine lines and tighten skin. Combine filtered warm water, coffee grounds, 2 teaspoons of Epsom salts and a bowl and allow to soak for a little while. Then simply wash you face - not only will you get a brightening clean, but the ground will give you a gentle exofliation too. Colour boost This is one for those with brunette hair. To add shine to your hair, make a paste from mixing coffee grounds with water. Simply apply to damp, clean hair and leave for 10 minutes before rinsing. Image credits: Getty Images

Beauty & Style

Nespresso launches limited-edition festive collection

Nespresso and world-renowned pastry chef and chocolatier Pierre Hermé are thrilled to join forces and announce a limited-edition capsule collection to kick off the festive season. The exclusive coffees and accessories are a celebration of refined tastes and indulgence, representing the best when it comes to tasting pleasures. The limited-edition collaboration builds upon Pierre Hermé’s extensive background as an expert of flavour, bringing to life a collection that focuses on shared moments with friends and family over the festive period. Of all the festive scenes in the world, Parisian design and culinary science is the pinnacle - the lights, the Christmas markets, the extravagant art, the city’s infectious energy - all these make Paris during Christmas a dream. Australians have long looked to Europe for inspiration when it comes to Christmas and with this new collection, Aussies will have the chance to experience Parisian finesse without leaving the country. From the creator of the Haute Pâtisserie, Pierre Hermé’s pastries are at the apex of avant-garde design, skilled technique and refined flavours. Decades of experience beginning with an apprenticeship at age 14 for Gaston Lenôtre, widely considered the father of modern pastry, led to Pierre Hermé being crowned the prestigious title of World’s Best Pastry Chef in 2016. With namesake boutiques and cafés all over the globe, Pierre Hermé’s creativity and sophistication in gastronomy is unparalleled. His unmistakably modern imagination pairs with technique to craft the ultimate coffee for the most discerning of palates – foodies will delight in the complex flavours while rejoicing in the ease of use, all from the comfort of home. If you're a devote Nespresso fan make sure you pick up the limited edition advent calendar. Containing 24 coffees and a surprise gift for the last day. The coffees are a mix of favourites from Nespresso’s permanent range and Pierre Hermé’s co-created limited edition collection. All presented in an exquisite box designed to be reused afterwards. In addition to the limited edition coffee pods, Nespresso have come out with three limited edition coffee machines including: <img src="https://oversixtydev.blob.core.windows.net/media/2022/11/Coffee-machines-new.jpg" alt="" width="835" height="414" /> The Nespresso | The Pierre Hermé collection is available now in Nespresso boutiques worldwide and online. As with all shared moments, the collection is available for a limited time only and while supplies last. You can check out the beautiful new collection here: Images: Supplied

Food & Wine

7 signs you’re drinking too much coffee

<h2>You feel anxious</h2> Ruminating about an upcoming event or deadline can fuel your desire to grab a comforting mug of coffee. Yet, the National Institute of Mental Health in the US recommends that people who suffer from anxiety avoid caffeine. Why? Drinking too much coffee can actually worsen the effects of anxiety, either by robbing you of proper sleep or triggering your flight or fight response. In a 1990 study published in Psychosomatic Medicine, 25 men were given a moderate dose of caffeine or a placebo before a stressful task. The men, who were all regular coffee drinkers, had higher blood pressure, stress hormones, and about double the reported stress level with the caffeine compared with the placebo. <h2>Your stomach hurts</h2> You may associate stomach pains with spoiled food or PMS cramps. You should add your morning cuppa to that list as well. In 2017, European scientists found that certain compounds in coffee stimulate the secretion of stomach acid by your stomach cells. Taking an over-counter medication like Tums can neutralise the acid short-term, but if you suspect drinking too much coffee is making your stomach hurt, think about changing your coffee consumption habits. <h2>Your heart is racing</h2> The feeling that your heart is beating too fast can be frightening. It may feel like your heart is trying to escape from your ribcage. These heart palpitations can be caused by the consumption of too much coffee and caffeine, nicotine, and even alcohol. In some cases, a racing heart can lead to dizziness and even fainting spells. According to a 2017 study in the journal Frontiers in Psychiatry, 94 per cent of doctors recommend patients experiencing the fluttering heart beats stop consuming caffeine. <h2>You have diarrhoea</h2> Most people know that coffee can help keep you regular, thanks to its laxative properties. Drink more than two or three cups a day, though, and you might get diarrhoea, according to the International Foundation for Gastrointestinal Disorders. If you find your bathroom issues become unmanageable, the IFFGD recommends gradual withdrawal from caffeine. <h2>You can’t sleep</h2> Insomnia can be a telltale sign of too much coffee. Even if you swear coffee doesn’t have any effect on you, this tasty drink can still wreak havoc on your sleep cycle. Coffee’s half-life is five hours, according to the American Academy of Sleep Medicine. That means it can take several more hours for the stimulant to completely leave your system. This can increase the number of times you wake up during the night, and decrease overall time asleep. To solve this problem, try to drink that last cup of coffee no later than noon. <h2>You’ve got the jitters</h2> Coffee makes you feel more alert, but sometimes that feeling turns into too much of a good thing. This is where the jitters come in. Caffeine speeds up your central nervous system, causing you to feel jumpy. Skip that fourth cup and stop the shakes. <h2>You get headaches</h2> A moderate amount of caffeine helps relieve a headache, by helping pain-relief medications work better, according to a study in The Journal of Headache and Pain. That’s why you’ll find caffeine as an ingredient in many over-the-counter headache drugs. However, if you drink too much coffee for a sustained amount of time (getting a daily excess of 500 mg of caffeine, or the equivalent of five cups of coffee), you can go through caffeine withdrawal. The symptoms include headaches and fatigue, found Johns Hopkins researchers. Slowly decrease your caffeine intake – and look at all the possible sources in your diet, including coffee, headache drugs, tea, soft drink, and energy drinks. This article originally appeared on <a href="https://www.readersdigest.com.au/healthsmart/7-signs-youre-drinking-too-much-coffee" target="_blank" rel="noopener">Reader's Digest</a>. Image: Shutterstock

Body

Mixed messages: Is coffee good or bad for us?

Coffee is good for you. Or it’s not. Maybe it is, then it isn’t, then it is again. If you drink coffee, and follow the news, then perhaps you’ve noticed this pattern. A recent study showed that coffee, even sweetened, <a href="https://www.theglobeandmail.com/life/health-and-fitness/article-beck-coffee-delivers-health-perks-even-with-some-sugar-new-study/" target="_blank" rel="noopener">was associated with health benefits</a>. But other studies <a href="https://www.hsph.harvard.edu/news/hsph-in-the-news/is-coffee-good-or-bad-for-your-health/" target="_blank" rel="noopener">have come to more mixed conclusions</a>. What’s driving these pendulum swings in the health status of coffee? Like a good cup of coffee, the answer is complex, but seems to boil down to human nature and scientific practice. <h2>Wishful optimism</h2> Globally, we consume about <a href="https://britishcoffeeassociation.org/coffee-consumption/" target="_blank" rel="noopener">two billion cups of coffee each day</a>. That’s a lot of coffee, and many of those who imbibe want to know what that coffee is doing to us, in addition to waking us up. As a species, we are often <a href="https://grist.org/article/80-percent-of-humans-are-delusionally-optimistic-says-science/" target="_blank" rel="noopener">delusionally optimistic</a>. We want the world to be better, maybe simpler, than it is. We squint at our morning cup through those same rosy glasses: We really want coffee to bring us health, not just a sunny disposition. But is that likely? In drinking coffee, we’re ingesting a complex brew that includes literally thousands of chemicals, including one that evolved to dissuade herbivores from munching on the coffee plant: caffeine. <h2>Coffee for the caffeine</h2> Our morning kickstart comes from a plant toxin. The possible health benefits of coffee are generally attributed to other molecules in the brew, often antioxidants including polyphenols, <a href="https://doi.org/10.1007/s00217-019-03388-9" target="_blank" rel="noopener">a group that are found in substantial concentrations in coffee</a>. But they, and other antioxidants, are also found <a href="https://www.hsph.harvard.edu/nutritionsource/antioxidants/" target="_blank" rel="noopener">in many plants like broccoli or blueberries, and in higher concentrations</a>. We drink coffee for the caffeine, not the antioxidants. The best we can realistically hope for is that we aren’t harming ourselves by drinking coffee. With any luck, coffee isn’t killing us nearly as quickly as other things that we’re doing to our bodies. I’m looking at you <a href="https://health.clevelandclinic.org/sluggish-start-the-5-worst-breakfast-foods/" target="_blank" rel="noopener">doughnuts</a>, <a href="https://www.verywellhealth.com/microwave-popcorn-and-cancer-5085309" target="_blank" rel="noopener">microwave popcorn</a> and <a href="https://www.mayoclinic.org/healthy-lifestyle/quit-smoking/expert-answers/cigar-smoking/faq-20057787" target="_blank" rel="noopener">celebratory cigars</a>. The dynamic nature of science also drives our on-again, off-again medical love affair with coffee. Scientists like to study coffee almost as much as we like to drink it; there are almost three and a half million scientific articles focused on coffee (thanks Google Scholar). Even the number of cups we consume is surprisingly contentious, with many aspects <a href="http://dx.doi.org/10.1136/bmjnph-2018-000013" target="_blank" rel="noopener">being subject to scrutiny, study and debate</a>. <h2>Changing research findings</h2> The dizzying swings in coffee’s health status highlight a fundamental challenge in modern science. Research is an ongoing process, and our understanding of the world around us changes as we explore and learn. We question, examine and make decisions based on the best information we have. Those decisions can, and should, change as we get new information. In 1981, a high profile New York Times opinion piece loudly proclaimed that <a href="https://www.nytimes.com/1981/03/14/opinion/coffee-and-cancer.html" target="_blank" rel="noopener">our morning cup was driving us to an early grave</a>. The writers wrung their hands as they swore off coffee and faced the grey reality of their post-coffee world. Their passionate convictions were driven by a then-recent study in which researchers clearly linked even moderate coffee consumption with a substantial rise in premature death. Three years later the study was refuted by some of <a href="https://doi.org/10.1056/NEJM198608283150918" target="_blank" rel="noopener">the same scientists</a>, and the editors were, presumably, back in their coffee cups – if they had ever actually stepped away. The initial study was well done, included more than 1,000 patients from almost a dozen hospitals and five reputable scientists. The results were clear and the conclusions seemed justified. But a follow-up study failed to replicate the, admittedly shocking, conclusions: the authors found no link between drinking coffee and premature death. What went wrong? One thing may have been the researchers’ reliance on a common measure of statistical significance, the p value. The value was developed as a way to explore data, but is often treated as a magic bullet that identifies significant results. But there simply isn’t a foolproof, objective or irrefutable way to identify or quantify the significance of a result. We can reach reasonable conclusions in which we have some kind of confidence, but that is about as good as it is going to get. We need to question conclusions that seem to be too good to be true, like the idea that consuming a plant toxin could make us live longer, that <a href="https://theconversation.com/hoping-to-get-in-shape-for-summer-ditch-the-fads-in-favour-of-a-diet-more-likely-to-stick-122648" target="_blank" rel="noopener">only eating a fictional caveman diet will make us healthier</a>, <a href="https://www.theglobeandmail.com/canada/article-covid-19-pandemic-not-over/" target="_blank" rel="noopener">acting as though the COVID-19 pandemic is over</a>, even in the face of daily evidence that it isn’t, will make it go away, or that <a href="https://www.forbes.com/sites/nilsrokke/2022/04/07/why-we-cant-ignore-the-latest-un-climate-change-report/" target="_blank" rel="noopener">simply ignoring massive fluctuations in weather will make global climate change disappear</a>. Common sense can go a long way. <h2>Health benefits</h2> Is coffee good for you? Yes, in the sense that it will wake you up, brighten your mood, maybe even give you an excuse to get out of the house and chat with friends at a local coffee house. Will drinking coffee make you healthier or help you live longer? Probably not. Sure, the antioxidants in our morning cup could actually be helping our bodies, but there are far better ways to boost your antioxidant intake. So, wake up with a strong cup of coffee, <a href="https://theconversation.com/food-variety-is-important-for-our-health-but-the-definition-of-a-balanced-diet-is-often-murky-149126" target="_blank" rel="noopener">but stay healthy with a complex and varied diet</a>. This article originally appeared on <a href="https://theconversation.com/mixed-messages-is-coffee-good-or-bad-for-us-it-might-help-but-it-doesnt-enhance-health-187343" target="_blank" rel="noopener">The Conversation</a>. Image: Shutterstock

Body

Jada's plea to Will Smith and Chris Rock

Jada Pinkett Smith has directly addressed her husband Will’s infamous Academy Awards outburst in the latest episode of her online chat show, Red Table Talk. Looking straight into the camera, Jada called on both her husband and Chris Rock, to put aside their differences and make peace. Best Actor Oscar winner, Will shocked viewers worldwide when he invaded the stage and smacked Rock, who had made a joke about Jada’s bald head. She has been open in recent years about being diagnosed with hair loss disorder alopecia. Jada’s latest episode of Red Table Talk was dedicated to telling the stories of those with alopecia, so she addressed the elephant in the room upfront. “This is a really important Red Table Talk on alopecia. Considering what I’ve been through with my own health and what happened at the Oscars,” she began. “Now about Oscar night: My deepest hope is that these two intelligent, capable men have an opportunity to heal, talk this out and reconcile,” she said, referring to her husband and Rock. She also seemed to suggest the reconciliation should play out on Red Table Talk, telling viewers: “The state of the world today, we need them both. And we all actually need one another more than ever. Until then, Will and I are continuing to do what we have done for the last 28 years, and that’s keep figuring out this thing called life together. Thank you for listening.” Jada has used the Red Table Talk format to publicly work through family issues in the past, famously opening up about an extramarital relationship in a past episode as her husband sat and watched. It’s a rare public statement from anyone in the Smith family about what went down on Oscars night, with Will keeping quiet aside from an apologetic statement released the day after the awards, saying his behaviour was “unacceptable and inexcusable.” Rock, too, hasn’t gone into too much detail, telling the audience at his next stand-up show: “I’m still kind of processing what happened. So, at some point I’ll talk about that sh*t. And it will be serious and funny.” Will Smith won the Best Actor Oscar just half an hour after slapping Rock, but since that night, his career has gone quiet, with several upcoming projects either delayed or cancelled. Image: Red Table Talk

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