Dr. Jason Fung: The Best Fasting Method for Visceral Fat and Insulin Resistance has Been Discovered

Thomas DeLauer
Thomas DeLauer
Published on 14.03.2026

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Timestamps ⏱

0:00 - Intro
0:22 - The 4 Types of Fasting
3:35 - Why Day Two of a Fast Feels Easier Than Day One
5:32 - Why Are You Hungry With 300,000 Calories in Your Fat Stores?
6:42 - What Shifts After 16 Hours of Fasting?
7:54 - Free Variety Pack of LMNT Electrolytes
8:38 - The Stages of Fasting (Glycogen, Gluconeogenesis, Fat Burning)
14:48 - The Hardest Point of a Fast & the Transition Zone
16:38 - Thomas's Mini-Refeed Experiment
18:33 - Metabolic Flexibility & Fat Adaptation Gene Changes
21:42 - Can You Lose Metabolic Flexibility the Other Way?
23:11 - Speed of Absorption Changes Everything (Nicotine, Oats, Apples)
27:24 - The 4th Type: Fasting Mimicking Diet
28:43 - Fasting, Cancer, Inflammation & Autoimmunity
30:51 - How Longer Fasts Fixed Jason Fung’s Achilles Tendonitis
35:07 - Fasting Mimicking Mechanisms (CRP, Insulin, IGF-1)
39:39 - Hormesis: Why You Can Overfast Just Like You Can Overtrain
41:20 - How You Break a Fast Matters
42:56 - Homeostatic vs. Hedonic Hunger During Longer Fasts
46:04 - Sardine Fasting & Getting People Into Fasting
47:26 - The 3 Types of Hunger (Homeostatic, Hedonic, Conditioned)
51:11 - Hormones Drive Weight, Not Calories (GLP-1, Insulin, Cortisol)
55:06 - Hedonic Hunger & Ultra-Processed Food Addiction
59:35 - Addiction, Abstinence & Low-Dose Naltrexone for Obesity
1:02:09 - The Calorie Paradigm Is Missing the Point
1:06:24 - Calories Are a Signal, Not THE Signal
1:08:07 - Perimenopause, Estrogen & Why Weight Gain Isn’t a Choice
1:12:00 - The 3 Whys: Why the Titanic Really Sank
1:15:08 - Conditioned Hunger & Pavlov’s Dogs
1:19:58 - Move to Japan, Lose the Weight
1:22:44 - Calorie Bullying & the Shame Problem
1:27:27 - Why Alcoholics Anonymous Has No “Count Your Drinks” Step
1:30:48 - Practical Tips for Homeostatic Hunger
1:34:08 - Food Order Hack: Meat & Veggies Before Carbs
1:36:18 - Meal Timing & Early Time-Restricted Feeding
1:37:38 - Resistant Starch (Cool & Reheat Your Rice)
1:38:50 - Vinegar, Fermented Foods & Salivary Amylase
1:40:02 - Walking After a Meal Blunts Glucose & Insulin
1:42:25 - Traditional Diets Already Knew All of This
1:45:32 - Protein Leverage Hypothesis: Is More Protein Always Better?
1:47:05 - mTOR: Growth Signaling, Cancer & Rapamycin
1:50:34 - Maybe It’s Micronutrients, Not Macros
1:52:10 - Food Synergy: Why Whole Foods Beat Multivitamins
1:55:38 - The Breast Milk Fiasco & Thinking We’re Smarter Than Nature
1:58:26 - The Lindy Effect: Why Ancient Advice Survives
2:01:57 - Butter, Coconut Oil & Optimization Exhaustion
2:03:21 - Jason Fung’s 3 Golden Rules of Weight Loss
2:07:02 - Purpose, Gratitude & What the Happiest People Have in Common
2:08:43 - Religion, Fasting & the Common Denominators of Health
2:10:43 - Where to Find More of Dr. Fung & The Hunger Code

Runtime 02:11:45

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