Did you know that low-fat diets—as they've been largely followed in the U.S.—have hampered our ability to lose weight? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn, for her interview with David Ludwig, M.D., Ph.D., endocrinologist, Professor of Pediatrics at Harvard Medical School, Professor of Nutrition at Harvard School of Public Health, and author of: Always Hungry? Conquer Cravings, Retrain Your Fat Cells & Lose Weight Permanently. Food Sleuth helps listeners "think beyond their plates," connect the dots between food, health and agriculture, and find food truth.