Artificial sweeteners used in diet sodas and low-fat desserts should 'not be assumed safe,' an scientist has warned — after his study found they made it harder for cells to absorb sugar and changed the gut microbiome.Researchers led by the Weizmann Institute of Science near Tel Aviv, Israel, and Johns Hopkins University in gave 120 people one of four sweeteners or a placebo up to three times a week for 14 days at doses lower than the recommended limits.They found those who got aspartame and stevia — often found in diet sodas and juices — had an altered gut microbiome. But those who got saccharin and sucralose — a common sugar substitute in baking — were also less able to absorb sugar.
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