Why Do We get Fat? Part 1 - The Biggest Lie in Obesity Medicine episode artwork

EPISODE · Sep 10, 2026 · 17 MIN

Why Do We get Fat? Part 1 - The Biggest Lie in Obesity Medicine

from Jason Fung · host Jason Fung

This is Why You're Not Losing Weight (Its Not Calories) | Dr. Jason FungPre-order The Hunger Code - Out March 2026 at www.doctorjasonfung.comVisit www.drinkaeira.com for hunger management tools.Stop counting calories! It's the biggest, most damaging lie in obesity medicine.In this video, Dr. Jason Fung, the best-selling author of The Obesity Code & The Hunger Code dismantles the single biggest myth in weight loss: CaloriesIn, Calories Out (CICO).For decades, we've been told that weight gain is a personal failing—a simple lackof willpower. Dr. Fung explains why this is completely false. He reveals thatweight gain isn't a calorie problem; it's a hormonal problem.In this video you will learn:● Why the CICO equation, while technically true, is practically useless forweight loss.● The problem: Why your Basal Metabolic Rate (BMR)plummets when you cut calories, sabotaging your efforts.● The true Arrow of Causality: Hormones (not calories) are the real causeof weight gain.● How Insulin, the master hormone, forces your body to store fat and makesyou hungrier.● Why 100 calories from a cookie is NOT the same as 100 calories from anegg.● The Circular Logic trap that keeps people fixated on counting.● How food acts as information that gives your body specific instructions.This is a must-watch for anyone who has struggled with yo-yo dieting and islooking for the real, science-based solution to lasting weight loss.�� If you’re serious about losing weight without losing your health or youthfulook, this video is a must-watch.�� Subscribe now for more science-backed videos on fasting, weight loss, anmetabolic health. And don’t forget to like ��, comment ��, and share this vidwith anyone who still believes in the calorie deficit myth!▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬⏱️ Chapters / Timestamps00:00 - The Biggest Lie in Obesity Medicine00:40 - The Flawed Calories In vs. Calories Out Equation01:15 - Why We Think Obesity is a Personal Failing (And Why It's Wrong)02:13 - Body Fat is Tightly Controlled by Hormones03:02 - The Problem: Why Eating Less Fails03:50 - The Inevitable Drop: Basal Metabolic Rate (BMR)04:37 - The Real Cause of Weight Gain: Hormones05:13 - The Master Hormone: How Insulin Makes You Fat06:00 - Hormones Control Your Hunger & BMR (Not Willpower)08:21 - The Circular Logic Trap of CICO08:40 - Not All Calories Are Equal (Cookies vs. Eggs)10:14 - Food is NOT Just Energy, It's Information11:09 - The Critical Choice: Store Calories or Burn Calories?12:12 - Final Takeaway: Focus on Hormones, Not Calories=============================�� BOOKS:�� The Obesity Code - Reviewing underlying physiology of weight loss anhow low carb diets and fasting can help.https://www.amazon.com/dp/1771641258?...�� The Diabetes Code - Reviewing how type 2 diabetes is a reversibldisease and dietary strategies. https://www.amazon.com/dp/B0795BLS8D?...�� The Cancer Code - Scientific exploration of how cancer developshttps://www.amazon.com/dp/0062894005?...�� Amazon:�� USA - https://www.amazon.com/shop/jasonfung�� Canada - https://www.amazon.ca/shop/jasonfung▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬�� Please visit our :-�� Website - https://www.doctorjasonfung.com�� Blog- / drjasonfung�� Community- https://www.thefastingmethod.com�� Facebook - / jason.fung.313�� Instagram - / drjasonfung�� Twitter - / drjasonfung▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬�� YouTube Medical Lectures (for specialist physicians)▶️ The Roots of the Obesity Epidemic: https: // • The Obesity Epidemic,Explained▶️ Therapeutic Fasting - The Two Compartment Problem:https: // •Fasting and Weight Loss - Solving the...▶️ Does Calorie Counting work?: • Why Calorie Counting rarely leads to...▶️ Two Big Lies of Type 2 Diabetes: • Two Big Lies about Type 2Diabetes▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬If you liked the video, Please Do Subscribe My Channel ����Keep Supporting me S Learn more about your ad choices. Visit megaphone.fm/adchoices

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Why Do We get Fat? Part 1 - The Biggest Lie in Obesity Medicine

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