Low-Fat Diets Don’t Work

During the past 35 years, nutritional experts have advised people to cut down the amount of fats they consume. The origin of this recommendation was the United States Senate Select Committee on Nutrition and Human Needs Committee chaired by former U.S. Senator George McGovern (1968 and 1977). This productive committee established reduced intake of fats and increased consumption of carbohydrates as national goals. Americans took this advice to heart, and obesity rates went through the stratosphere. Deirdre Tobias and co-workers from Brigham and Women’s Hospital and Harvard University conducted a meta-analysis that pooled the results of 53 randomized trials on the effects of low-fat diets on long-term weight loss. Low-fat diets do not cause more weight loss than diets higher in fat. Fat has been demonized for nearly half a century, based more on political considerations than scientific fact. (The Lancet Diabetes & Endocrinology, 3: 968-979, 2015)

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