Dr. Jason Fung

Nephrologist, author

Obesity • intermittent fasting • type 2 diabetes

1Episode

71 minAnalysed

1Topic

Last reviewed: May 24, 2026·Credential: MD·First indexed: May 24, 2026

About the expert

Focus: Hormonal model of obesity, intermittent fasting, type 2 diabetes reversal

Dr. Jason Fung is a nephrologist and author known for popularizing the hormonal model of obesity and intermittent fasting as a therapeutic intervention for type 2 diabetes and weight management. His work emphasizes insulin and cortisol as primary drivers of fat storage.

Why this matters

Nephrologist focused on the hormonal model of obesity and intermittent fasting as therapeutic tools, particularly for insulin resistance and metabolic disease. Operates from a strong hormonal-driver framework that remains contested in mainstream nutrition science; strongest on insulin biology and clinical observation, less rigorous on long-term randomized comparison with balanced-diet approaches.

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Topics covered

Intermittent Fasting & Time-Restricted Eating (Human)

Episodes with Dr. Jason Fung

Fung: Why insulin and food quality may matter more than calories for lasting fat loss

Calorie balance matters for weight change, but hormonal signaling, food quality, and meal timing may strongly affect how sustainable any weight change feels over time. The strongest first steps are reducing ultra-processed foods and structuring when you eat. Specific fasting protocols are a more advanced layer that may need clinical input.

71 minHuman

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