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Eating Foods Made With Fat Substitutes Contributes To Weight Gain

May 28, 2011: 11:38 AM EST
A U.S. study has demonstrated that consuming foods processed with synthetic fat substitutes actually contributes to weight gain and obesity. For the study, rats were fed a diet of either high-fat or low-fat chow. Half of the rats in each group were fed high-calorie, high-fat potato chips, while the other half were fed either high-calorie chips or low-calorie chips made with the artificial fat olestra. Rats fed the high-fat diet who ate both types of chips ended up eating more food, gaining more weight and developing more fatty tissue than rats that ate only the high-calorie chips. The researchers said that their findings indicate that “a diet that is low in fat and calories might be a better strategy for weight loss than using fat substitutes."
Susan E. Swithers, et al. , "Fat Substitutes Promote Weight Gain in Rats Consuming High-Fat Diets", Behavioral Neuroscience, May 28, 2011, © American Psychological Association
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