Dr. Jason Fung is a Canadian nephrologist, New York Times bestselling author, and leading voice in the fields of intermittent fasting, insulin resistance, weight loss, and type 2 diabetes. He is best known for his books The Obesity Code, The Diabetes Code, The Complete Guide to Fasting, and The Hunger Code, where he challenges the traditional “calories in, calories out” model and argues that hormones, especially insulin, play a major role in fat storage, hunger, and metabolic health. Dr. Fung co-founded The Fasting Method and has helped popularize fasting as a practical tool for improving metabolic health and supporting sustainable weight loss.
Today on the show we discuss: why losing body fat is more complicated than calories in versus calories out, how hormones like insulin and cortisol affect fat storage, why ultra-processed foods can drive hunger and cravings, how emotional eating and habit-based eating keep people stuck, why fasting works best when paired with better food choices, and the simple daily habits that can improve insulin control, including whole foods, fewer refined carbs, walking after meals, better sleep, and stress management and much more.
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