Intermittent fasting is an increasingly popular diet method intended to trigger weight loss. It's also said to provide other health benefits. But does it actually work? And which form is appropriate for which people? Dr. Krista Varady is the University of Illinois, Chicago professor of nutrition and a globally recognized expert in intermittent fasting. Here she discusses her recommendations with Leslie Beck, the Globe and Mail nutrition columnist and Medcan's Director of Food and Nutrition.

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