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Common artificial sweeteners found to be toxic to gut bacteria

Commonly used EU and US-approved artificial sweeteners and sport supplements can damage gut microbes, according to a new paper published in Molecules by researchers at BGU and Nanyang Technological University in Singapore.

The collaborative study indicated relative toxicity of six artificial sweeteners (aspartame, sucralose, saccharine, neotame, advantame, and acesulfame potassium-k) and 10 sport supplements containing these artificial sweeteners. 

The bacteria found in the digestive system became toxic when exposed to concentrations of only one mg./ml. of the artificial sweeteners.

“We modified bioluminescent E. coli bacteria, which luminesce when they detect toxicants and act as a sensing model representative of the complex microbial system,” says lead researcher Prof. Ariel Kushmaro.

“This is further evidence that consumption of artificial sweeteners adversely affects gut microbial activity which can cause a wide range of health issues.”

Artificial sweeteners are used in countless food products and soft drinks with reduced sugar content. Many people consume this added ingredient without their knowledge. Artificial sweeteners have also been identified as emerging environmental pollutants, and are found in drinking and surface water, and groundwater aquifers.

“The results of this study might help in understanding the relative toxicity of artificial sweeteners and the potential of negative effects on the gut microbial community as well as the environment,” says Kushmaro. 

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About the Author

Jim Manson

Writer & Editor
Jim Manson is editor-in-chief of Diversified Communications UK‘s natural and organic publishing portfolio. He’s written widely on environment and development issues for specialist magazines and national media, including the Financial Times, The Guardian, The Times, and World Bank Urban Age

Articles by Jim Manson

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