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

This is Why You're Not Losing Weight (Its Not Calories) | Dr. Jason Fung Pre-order The Hunger Code - Out March 2026 at www.doctorjasonfung.com Visit 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: Calories In, Calories Out (CICO). For decades, we've been told that weight gain is a personal failing—a simple lack of willpower. Dr. Fung explains why this is completely false. He reveals that weight 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 for weight 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 cause of weight gain. ● How Insulin, the master hormone, forces your body to store fat and makes you hungrier. ● Why 100 calories from a cookie is NOT the same as 100 calories from an egg. ● 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 is looking for the real, science-based solution to lasting weight loss. �� If you’re serious about losing weight without losing your health or youthfu look, this video is a must-watch. �� Subscribe now for more science-backed videos on fasting, weight loss, an metabolic health. And don’t forget to like ��, comment ��, and share this vid with anyone who still believes in the calorie deficit myth! ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ⏱️ Chapters / Timestamps 00:00 - The Biggest Lie in Obesity Medicine 00:40 - The Flawed Calories In vs. Calories Out Equation 01:15 - Why We Think Obesity is a Personal Failing (And Why It's Wrong) 02:13 - Body Fat is Tightly Controlled by Hormones 03:02 - The Problem: Why Eating Less Fails 03:50 - The Inevitable Drop: Basal Metabolic Rate (BMR) 04:37 - The Real Cause of Weight Gain: Hormones 05:13 - The Master Hormone: How Insulin Makes You Fat 06:00 - Hormones Control Your Hunger & BMR (Not Willpower) 08:21 - The Circular Logic Trap of CICO 08:40 - Not All Calories Are Equal (Cookies vs. Eggs) 10:14 - Food is NOT Just Energy, It's Information 11:09 - 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 an how low carb diets and fasting can help. https://www.amazon.com/dp/1771641258?... �� The Diabetes Code - Reviewing how type 2 diabetes is a reversibl disease and dietary strategies. https://www.amazon.com/dp/B0795BLS8D?... �� The Cancer Code - Scientific exploration of how cancer develops https://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 2 Diabetes ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ If you liked the video, Please Do Subscribe My Channel ���� Keep Supporting me So I can Continue to provide you with free content each week!!�� ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ �� �� Thank you for Watching #WeightLoss #ObesityCode #InsulinResistance #CICO #Hormones #JasonFung #WeightGain #DietMyths #Metabolism