Episode 288: Dr. Jason Fung

Episode 288: Dr. Jason Fung

Author: Dr. Brian Lenzkes March 11, 2026 Duration: 1:16:34

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…

  • (00:00) Intro

  • (05:46) The new dietary guidelines and food pyramid

  • (08:02) The Huger Code and understanding hunger

  • (13:19) Why the calories-in/calories-out model for weight-loss is ineffective

  • (17:44) Hedonic hunger

  • (19:06) Conditioned hunger

  • (24:41) Hormones and calories

  • (28:15) Insulin and fat-burning

  • (31:47) The process of digestion and how every step of the process impacts hormones and weight

  • (38:08) While ultra-processed foods are SO much more obesogenic than whole foods

  • (39:53) Food addiction and effective treatment

  • (46:19) The 3 Golden Rules of Weight Loss

  • (49:25) Dr. Fung's new book and masterclass! (Links below)

  • (51:55) Human biology and flavor variety

  • (57:09) Fasting and satiety

  • (01:04:43) Hubris, pride, and ignorance in medicine

  • (01:09:15) Outro

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

Links:

 

Dr. Jason Fung:

Dr. Brian Lenzkes:

Dr. Tro Kalayjian:


What does it truly mean to be well? For Dr. Brian Lenzkes, the answer stretches far beyond a chart of lab results. On the Life's Best Medicine Podcast, he explores the interconnected layers of a whole life, where physical health is deeply woven into the fabric of our relationships, our sense of purpose, and our spiritual grounding. Each conversation moves past simplistic advice to consider how family, community, and personal faith shape our daily resilience. You’ll hear from a variety of guests who share candid stories-not just of medical recovery, but of profound human connection, unexpected compassion, and quiet heroism found in everyday challenges. Dr. Lenzkes brings his perspective as a practicing physician who believes healing is a multifaceted endeavor. This isn't a lecture series; it's a collection of genuine dialogues that remind us our wellbeing is a holistic story still being written. Tune into this podcast for thoughtful reflections that might just change how you view your own health, relationships, and place in the world.
Author: Language: English Episodes: 50

Life's Best Medicine Podcast
Podcast Episodes
Episode 310: Sue Cramer [not-audio_url] [/not-audio_url]

Duration: 1:12:35
Sue Cramer is a health coach who helps people make lasting changes to their health by focusing on practical, sustainable habits rather than quick fixes. With a passion for nutrition, lifestyle, and metabolic health, Sue…
Episode 307: A Patient Story | Garth Limburg [not-audio_url] [/not-audio_url]

Duration: 58:38
Garth Limburg is a patient of Dr. Lenzkes' who has had some ups and downs with his health and weight over the years. He tried the Atkins diet, fell off the wagon, was diagnosed with diabetes, and experienced the sick car…
Episode 306:  Doctor, How Can You Believe That Christian Stuff? [not-audio_url] [/not-audio_url]

Duration: 49:48
Dr. Brian Lenzkes shares his life story and the experiences that led him to his belief in Christianity. Over the years, Dr. Brain has often been asked how he can be a a doctor while also believing in Jesus. For many peop…
Episode 305: Dr. Brian Parker of Total Elixir [not-audio_url] [/not-audio_url]

Duration: 59:57
Dr. Brian Parker is the founder of Total Elixir and a physician dedicated to helping people optimize their health through nutrition, metabolic wellness, and lifestyle medicine. Drawing on years of clinical experience, he…
Episode 304: Alex and Karli Klintworth from Hi Energy [not-audio_url] [/not-audio_url]

Duration: 1:19:47
Karli and Alex Klintworth are a powerhouse husband and wife health coaching duo and the co-foudnders of Hi Energy health coaching. An engineer, former collegiate triathlete, and passionate nutrition educator, Alex became…
Episode 303: Dr. Robert Cywes [not-audio_url] [/not-audio_url]

Duration: 51:28
Dr. Rob Cywes is a board-certified surgeon specializing in pediatric surgery and surgical critical care, widely recognized for his pioneering work in obesity, diabetes, and metabolic health. Known to many as "The Carb Ad…