Life's Best Medicine Podcast · Dr. Brian Lenzkes

Episode 265: Jason Fung, MD and The Hunger Code

·1 hr 15 min·5 clips

Jason Fung says calories-in, calories-out is like telling an alcoholic to drink less.

1. Life's Best Medicine Podcast Episode 265 centers on Jason Fung’s book The Hunger Code and his critique of calorie-only explanations for weight gain. 2. Host Dr. Brian Lenskis introduces Jason Fung as a major influence and says Fung reached out after Lenskis’s mother died in June. 3. The episode asks why people overeat, rather than repeating that they should simply eat less. 4. Fung compares the advice “calories in, calories out” to telling an alcoholic to drink less. 5. He also compares that logic to cocaine, heroin, and alcohol addiction to show why moderation advice can fail. 6. Fung says the real question is why someone is hungry or overeating in the first place. 7. He uses Tro’s food addiction paper and Jen Unwin’s recent paper to support the addiction framing. 8. Fung introduces the “three whys” method and uses school, the Titanic, and iceberg avoidance as examples. 9. He says asking why three times gets from a superficial answer to a more useful cause. 10. Fung describes homeostatic hunger as a hormone-driven system that regulates body fat percentage. 11. He names insulin, cortisol, thyroid function, sympathetic nervous system activity, serotonin, GLP-1, and GIP as weight-related hormonal systems. 12. He points to prednisone, untreated type 1 diabetes, beta blockers, antidepressants, and antipsychotics as examples that change weight without adding calories. 13. Fung says Ozempic works because it affects GLP-1 and the satiety system, not because it removes calories. 14. He separates hedonic hunger from homeostatic hunger and links it to ultra-processed foods, dopamine, and comfort eating. 15. Fung describes white bread and cheese puffs as foods that spike glucose and dopamine while creating little satiety. 16. He says a breakup, grief, or stress can make eating ice cream feel like a rational way to escape pain. 17. The conversation is informal and back-and-forth, with the host challenging Fung on binge eating, stress, and fasts. 18. Fung adds a personal story about doing a five-day modified fast for Achilles tendinitis after shorter fasts and physiotherapy had not helped. 19. Listeners interested in fasting, obesity, diabetes, and food addiction will get the most out of this episode. 20. Listeners wanting a light celebrity interview or nutrition basics may skip it.

As heard by us

A blunt, human look at how comfort eating can mask stress, hunger, and mood.

The episode stays focused on a stubborn, familiar problem: why comfort food can feel so effective when stress, grief, or a bad day hits. Jason Fung and the host connect that pull to dopamine, satiety, insulin, and the idea that some foods can function like self-medication, which…

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You want a blunt take on why comfort food can feel like relief when stress and low mood hit.

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