Low-Carbohydrate Diets Best for Weight Loss

Weight-loss experts have argued for nearly 50 years about the relative merits of low-fat and low-carbohydrate diets for weight loss. A one-year study led by Lydia Bazzano from the Tulane University School of Public Health and Tropical Medicine concluded that low-carbohydrate diets were superior to low-fat diets. The low-carb group ate less than 40 grams of carbohydrates per day, while the low-fat group ate less than 30 percent of daily calories as fat. At 12 months, the low-carb group lost nearly eight pounds more than the low-fat group. The low-carb group also showed greater changes in heart disease risk factors such as high-density lipoprotein (HDL), ratio of total to HDL cholesterol, and triglycerides. The test subjects were a diverse cross section of races and ethnic groups. Most studies, however, showed no difference in weight loss at 12 months between low-carb and low-fat diets. (Annals Internal Medicine, 161: 309-318, 2014)

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