Food & Drink Why diet soda is (probably) bad for you, according to science

10:15  23 september  2016
10:15  23 september  2016 Source:   Vox.com

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Julia Belluz will sift through the research and consult with experts in the field to figure out how science can help us live happier and healthier lives. Have a question? Use our submission form or ask @juliaoftoronto on Twitter. Is diet soda really any better for you than regular soda ? One key question is why diet soda might be so bad for your health. In the absence of a firm answer, researchers have come up with several hypotheses. First, there's the idea that the act of drinking diet soda might change people's behaviors. Here's how Stanford's Christopher Gardner put it: "If you have

Diet sodas have long been marketed as weight loss tools. The idea is that they allow people to enjoy the sweetness of regular sugary soda , but without the calories and weight gain. Scientists , however, are highly skeptical of the marketing claims. They all agree that regular soda is terrible for you and should be avoided. One key question is why diet soda might be so bad for your health. In the absence of a firm answer, researchers have come up with several hypotheses.

Diet Coke cans and bottles at the Diet Coke thirtieth birthday party held at Sketch, London in 2013. © PA Archive/Press Association Images Diet Coke cans and bottles at the Diet Coke thirtieth birthday party held at Sketch, London in 2013. Diet sodas have long been marketed as weight loss tools. The idea is that they allow people to enjoy the sweetness of regular sugary soda, but without the calories and weight gain.

Scientists, however, are highly skeptical of the marketing claims. They all agree that regular soda is terrible for you and should be avoided. But they have serious questions about whether diet soft drinks, which tend to contain artificial sweeteners, are any better. The researchers I spoke to said they try to stay away from both types of drink and opt for water instead.

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Welcome to Dear Julia , a weekly column where readers can submit everyday health questions on anything from which over-the-counter painkillers work best to whether to run or walk for exercise. Julia Belluz will sift through the research and consul

Why diet soda is ( probably ) bad for you , according to science . Will it help you lose weight? Diet sodas have long been marketed as weight loss tools. The idea is that they allow people to enjoy the sweetness of regular sugary soda , but without the calories and weight gain. Scientists , however, are highly skeptical of the marketing claims. They all agree that regular soda is terrible for you and should be avoided.

"The big controversy in this area is whether artificial sweeteners and diet beverages might be contributing to the obesity epidemic and a parallel diabetes epidemic, which is exactly what they’re supposed to help curb," explained Vasanti Malik, a Harvard researcher who has studied diet soda.

That's because the evidence on whether drinking diet soda causes people to gain weight, leading to other chronic diseases, is genuinely mixed. One study from 2008 looked at the relationship between consumption of artificially sweetened beverages and long-term weight gain in 3,682 people. Drinking diet soda was associated with an almost doubled risk of overweight and obesity. "These findings raise the question whether artificial sweeteners use might be fueling — rather than fighting — our escalating obesity epidemic," the authors of that study wrote.

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Home U.S. Politics World Business Tech Health Motto Entertainment Science Newsfeed Living What’s the Worst Kind of Halloween Candy? Should I Eat This? Is Dried Fruit Just a Giant Sugar Bomb? People probably get hooked on diet soda in the hope that the “ diet ” part will pay off. ( Why else would you suffer an aftertaste as metallic as the can it comes in?) But liquid weight loss this is not.

Scientists , however, are highly skeptical of the marketing claims. They all agree that regular soda is terrible for you and should be avoided. But they have serious questions about whether diet soft drinks, which tend to contain artificial sweeteners, are any better. The researchers I spoke to said they try to stay away from both types of drink and opt for water instead. Why researchers who study artificial sweeteners avoid diet drinks.

But that wasn't the end of the story. Another study, published in 2012, found that people who replaced sugary soft drinks with diet beverages actually lost some weight. (In fact, they fared about as well as people who gave up sugary soft drinks and drank water instead.)

"So there are some studies that are reporting that consuming diet beverages actually contributes to weight gain," said Malik. "Others report consuming diet beverages contribute to an increased risk of diabetes. Others say that's not the case, that these studies are flawed." Malik predicts we'll have firmer answers in five years, as more studies are done.

Susan Swithers, a professor at Purdue University who has studied artificial sweeteners, agreed that the evidence is still murky. "Anybody who claims the consequences of diet soda for weight are clear is not understanding what the bulk of the literature actually says," she told me.

Lactose intolerance

  Lactose intolerance Lactose intolerance is the inability to absorb lactose into the digestive system. Find out what causes it.If lactose is not absorbed properly, it ferments in the colon and this can result in abdominal pain, a bloated stomach and diarrhoea.

Science of Diet . Probably not many. That’s because unless followed by other lifestyle changes, choosing diet drinks is absolutely useless. Diet Soda – What Exactly is it? Diet sodas are carbonated beverages. Instead of sugar, they are sweetened with artificial sweeteners like aspartame, cyclamate, saccharin, acesulfame-k or sucralose.

Why Diet Soda is Bad for You . Artificial sugars, caffeine, phenylalanine, preservatives - diet sodas don't offer anything good, and they may pose a health threat. According to livstrong.com, drinking just one diet soda a day can have health consequences. Many diet sodas contain phenylalanine, an amino acid that can be dangerous to those who suffer from phenylketonuria. If you have this disease, you shouldn't drink diet sodas or many other protein-rich foods because the body cannot process phenylalanine.

Part of that murkiness could be due to the fact that people who drink diet beverages are fundamentally different somehow from those who don't. People who choose to drink diet pop over regular soda might do so, for instance, because they already have weight troubles — which could confound the results.

Even so, scientists are increasingly questioning whether artificial sweeteners are as benign as they seem. One 2015 study in the British Medical Journal analysed all the best available research on the association between sugar-sweetened beverages, artificially sweetened drinks, juices, and Type 2 diabetes. What they found was startling: Regular consumption of sugary drinks was associated with diabetes — but so was consumption of diet drinks. (Other research on diabetes has come to similar conclusions, though the weight of evidence suggests artificial sweeteners don't cause cancer.)

One key question is why diet soda might be so bad for your health. In the absence of a firm answer, researchers have come up with several hypotheses.

First, there's the idea that the act of drinking diet soda might change people's behaviors. Here's how Stanford's Christopher Gardner put it: "If you have a Diet Coke in the afternoon, and then it is dinnertime and you remember that you had a Diet Coke, you might reward yourself with a bowl of ice cream." Capturing this compensation effect is really tough. But it could explain why studies show that diet soda drinkers gain weight and have related health issues.

Lactose intolerance

  Lactose intolerance Lactose intolerance is the inability to absorb lactose into the digestive system. Find out what causes it.If lactose is not absorbed properly, it ferments in the colon and this can result in abdominal pain, a bloated stomach and diarrhoea.

Why is Diet Soda Bad for You ? by Holly Klamer on March 16, 2015 · 0 comments. Does drinking diet soda really help with weight loss though? Not according to some research including a 2014 study. Holly is a registered dietitian with a MS degree in nutrition and exercise science .

Why Is Diet Soda Bad ? Why You Need to Stop Drinking Diet Soda Right Now. September 6, 2015 by Lizzie Fuhr. It leads to weight gain: A University of Texas Health Science Center study found that the more diet sodas a person drank, the greater their risk of becoming overweight. This Is the Diet to Go On If You Want to Lose Weight ( According to Harvard Researchers).

Or it may be something about the artificial sweeteners in diet sodas themselves. Some researchers have wondered whether these sweeteners affect our gut flora — the bacteria in our digestive tracts that helps with metabolism (and many other critical bodily functions). Emerging evidence — albeit from research that's only been done on rodents — suggests the chemicals in artificial sweeteners cause disturbances in the gut, which are associated with metabolic disorders like diabetes and obesity.

There’s also research that suggests fake sweeteners work on the brain in weird ways. Diet drinks seem to affect sugar cravings, for one thing. Experimental research in humans has found that the taste of sweetness, whether real or artificial, can boost appetite and cause people to eat more.

Other small studies suggest that when people are given sucralose, they experience a rush of insulin that doesn't lead to a decrease in blood glucose levels, as if the artificial sweetener is preventing the insulin from being as effective as it ought to be. This is the hallmark of insulin resistance and a harbinger of diabetes.

The underlying idea here is that fake sugars throw off our responses to real sugar. Our bodies and brains are conditioned to deal with sweetness in a certain way. When we taste something sugary, our body releases hormones like insulin and gears up energy for metabolism, so that when the sugar and calories hit our gut we're prepared to deal with them.

When you introduce artificial sweeteners, the body gets ready for sugar — which then doesn’t arrive. "The learned responses get blunted or go away," explained Swithers. "Your body says, 'Wait a minute, the last time I tasted something sweet, I didn’t get anything. This time, I don’t know what’s going to happen, so I’m not going to get ready to metabolise that much energy.'" (This theory aligns with the mounting evidence that artificial flavours may fool our sensory systems in other ways, leading us down the path to bad health.)

That’s not to say that loading up on beverages sweetened with real sugar is a good idea. They're usually devoid of nutritional value, and deliver a mega dose of calories without any accompanying satiety. But if you're weaning yourself off regular soda, drinking a bit of diet soda for a short period might be better overall for your health. If you’re not a sugary drinks addict, stick to water — replacing sugar with fake stuff may not be doing your body any favours, and could actually be harmful.

This Is the Diet to Go On If You Want to Lose Weight (According to Harvard Researchers) .
If you want to lose weight, what's on your plate is often more important than the minutes you spend in the gym. And if you want to see the most change, a 2015 study from Harvard says you should be cutting carbs, not fat.For the study, published in PLoS One, researchers from Harvard and Brigham and Women's Hospital reviewed 53 randomized trials of over 68,000 patients who had been assigned to either low-fat or low-carb diets. They found that low-carb diets were consistently better at helping patients lose weight than low-fat diets; the participants on the low-carb diets lost 2.

Source: http://uk.pressfrom.com/lifestyle/food-and-drink/-72527-why-diet-soda-is-probably-bad-for-you-according-to-science/

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