RadioMD: The Dr. Leigh Vinocur Show

Counting Calories: Does Dietary Fat Restriction Really Work?

September 11, 20159 min
The debate continues on whether or not restricting fat or carbs actually works.If you've been trying to lose weight, you might have noticed some diets drastically restrict certain food groups, like fat or carbs.In fact, low-fat dieting was a huge trend several years ago. Then, low or no carbs at all became extremely popular among trendy dieters.Does it really work?A recent study published in Cell Metabolism looked at 19 adults with obesity that were confined to a metabolic ward for two 2-week periods. Participants received both isocaloric diets in random order throughout both of the two-week duration.Researchers found that cutting carbohydrates increased net fat oxidation, but cutting fat by equal calories had no effect. Cutting fat resulted in more overall body fat loss that was measured by metabolic balance.What else did the research find, and does it mean that dietary restriction works?Listen in as lead researcher Kevin Hall, PhD, explains his dietary restriction study and if it has an impact on weight loss.

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