Frank Hu, MD, PhD
Associate Professor of Nutrition and Epidemiology
Harvard School of Public Health
For decades, the United States Department of Agriculture (USDA) has taught us that a diet low in fat and high in starch (e.g., USDA food pyramid) promotes fat loss and decreases the risk of chronic diseases. It should be noted, however, that there's not one shred of evidence supporting this notion.
In fact, the current epidemic of obesity has been accompanied by a significant decrease in fat consumption and an increase in carbohydrate consumption. Thus, alternative dietary approaches are clearly needed, especially for fat loss.
Indeed, a growing body of evidence indicates that carbohydrate restriction is the way to go when one wishes to cut extra lard. The latest very-low-carb study was recently published in the Journal of American Medical Association (JAMA).
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