The Chronicle

SWEETENERS ARE TOXIC TO GUT BACTERIA AND HEALTH

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If you’ve switched to Diet Coke in a bid to cut down on sugar, you might want to re-evaluate just how healthy your choices are. Scientists now claim that sweeteners found in Diet Coke and other soft drinks could damage your gut bacteria.

According to scientists from universiti­es in Israel and Singapore, six common artificial sweeteners – aspartame, sucralose, saccharin, neotame, advantame and acesulfame potassium (Ace K) – have all been found to be toxic to gut bacteria.

More and more studies are realising the importance of gut bacteria to a person’s overall health – with bad bacteria linked to a range of diseases from obesity to bowel diseases, even Alzheimer’s.

The study, published in Molecules, looked at the relative toxicity of the sweeteners and 10 sports supplement­s containing them.

It found the bacteria in the digestive system became toxic when exposed to tiny concentrat­ions of the sweeteners.

In a lab trial, the sweeteners were each exposed to bacteria that are commonly found in the gut.

These bacteria were geneticall­y modified to contain fluorescen­t compounds that glowed when they detected toxins.

The scientists found toxins were released when gut bacteria were exposed to each artificial sweetener, and it only took one mg/ml of the artificial sweeteners to turn the bacteria toxic.

A can of Diet Coke contains about 180mg of aspartame. And that’s led scientists to conclude : “This is further evidence that consumptio­n of artificial sweeteners adversely affects gut microbial activity which can cause a wide range of health issues”.

Good gut health relies on a healthy gut microbiome, which has been associated with everything from digestion and nutrient absorption to immune system function.

It’s not just sugar-free drinks that contain these chemicals, either.

Artificial sweeteners are used in loads of food products and drinks that boast reduced sugar content – and the study warns that many of us consume them without even realising.

It’s not just our immediate health that is potentiall­y at risk, either.

These sweet chemicals have also been identified as environmen­tal pollutants that are increasing­ly being found in drinking and surface water.

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