A large number of weight-loss supplements don't appear to work any better than placebos (or fake supplements) at helping people shed pounds, a new study has found.
German researchers tested placebos against weight-loss supplements that are popular in Europe. The supplements were touted as having these ingredients: L-Carnitine, polyglucosamine, cabbage powder, guarana seed powder, bean extract, Konjac extract, fibre, sodium alginate and certain plant extracts.
At least some of the supplements are available in the United States. "L-Carnitine is in US supplements, polyglucosamide is found in chitosan, which is still in some weight-loss supplements, and guarana was ordered removed from weight-loss supplements, but it has slowly worked its way back into some products," said Connie Diekman, director of university nutrition at Washington University in St. Louis and former president of the American Dietetic Association.
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