The Primal Podcast Ep 147 - Dr Jason Fung | NEW Scientific Way To Burn Fat [EAT THIS]
Jan 3, 2026
Dr. Jason Fung, a nephrologist and expert in intermittent fasting, challenges calorie counting myths and promotes understanding hunger mechanics for effective weight loss. He discusses how insulin affects metabolism and body fat regulation. Fung highlights the dangers of ultra-processed foods and advocates for low-carb diets to lower appetite and fat storage. He emphasizes the roles of mindset and community in achieving lasting change, making fasting a transformative tool for weight management. Get ready to rethink what you thought you knew about diet!
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Calories Are A Superficial Explanation
- Counting calories fails because it treats weight as a superficial first-order problem instead of addressing root causes like hunger and hormones.
- Dr. Jason Fung argues repeatedly that advice to just "eat less" produces a systemic failure, not individual moral failing.
Body Fat Has A Hormonal Thermostat
- Body fat is regulated by a homeostatic thermostat driven by hormones, not just food availability or willpower.
- When the thermostat rises it increases hunger and/or lowers metabolic rate to restore higher fat levels.
Lower Insulin, Manage Electrolytes
- Lower insulin first by reducing carbohydrates to influence whether calories are stored or burned.
- Be generous with salt and consider electrolytes when adjusting to a low-carb or fasting routine.