Episode 288: Dr. Jason Fung

by Brian Lenzkes, MD | Mar 11, 2026 | Podcast | 0 comments

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Dr. Jason Fung is a Canadian nephrologist and leading voice in metabolic health, best known for making the science of fasting and insulin resistance simple, practical, and empowering. Through his books, lectures, and clinical work, he’s helped thousands rethink weight loss, type 2 diabetes, and long-term health by focusing on hormones, not just calories. Dr. Fung is the co-founder of The Fasting Method and a sought-after educator on metabolic health.

In this episode, Drs. Brian, Tro, and Jason talk about:

• The new dietary guidelines and the food pyramid
• The Hunger Code and understanding hunger
• Why the calories-in/calories-out model for weight loss is ineffective
• Hedonic hunger
• Conditioned hunger
• Hormones vs. calories in weight regulation
• Insulin and fat-burning
• The process of digestion and how each step impacts hormones and weight
• Why ultra-processed foods are far more obesogenic than whole foods
• Food addiction and effective treatment approaches
• The 3 Golden Rules of Weight Loss
• Dr. Fung’s new book and masterclass
• Human biology and flavor variety
• Fasting and satiety
• Hubris, pride, and ignorance in medicine

For more information, please see the links below. Thank you for listening!

The Life’s Best Medicine Podcast is sponsored by HLTH Code.