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The Real Reason You Can't Lose Weight (Hormones and Obesity - a Masterclass)

2026-07-13 Education
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Jason Fung
Jason Fung
1.4m subscribers

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Description

Have you been told that losing weight is simply about "eating less and moving more"? For decades, the "Calories In, Calories Out" model has been the gold standard for weight loss. But what if it is completely wrong? In this Masterclass, I break down the real reason you can't lose weight: Hormones. We dive deep into the science of obesity and explore why calorie counting fails 99% of the time, as proven by massive studies like the Women's Health Initiative. Weight gain is not a character flaw or a lack of willpower—it is a hormonal imbalance. We will discuss exactly how hormones like Insulin, Cortisol, Thyroid, and Testosterone control your body fat, and more importantly, how you can fix it. In this video, you will learn: ● �� Why the 'Eat Less, Move More' advice is scientifically flawed. ● �� How hormones dictate whether your body stores or burns fat. ● �� The truth about weight-loss drugs like Ozempic (GLP-1). ● �� Why the 1977 dietary guidelines triggered the obesity epidemic. ● ✅ The ultimate, natural solution to lower insulin and lose weight effortlessly. � Join the Conversation: Have you struggled with calorie-counting diets in the past? What hormonal changes have you noticed on your weight loss journey? Let me know in the comments below! � Subscribe to the channel for more science-backed health insights: https://www.youtube.com/@DrJasonFung ⏱️ Video Chapters (Timestamps): 00:00 - The Biggest Weight Loss Myth (Calories In vs. Calories Out) 01:29 - Proof That "Eat Less, Move More" Doesn't Work 03:29 - Causality: Why Hormones Control Body Fat 03:52 - Insulin: The Fat-Storing Hormone 04:45 - How Stress (Cortisol) Makes You Fat 06:51 - Testosterone, Estrogen & Menopause Weight Gain 09:56 - How Ozempic & GLP-1 Drugs Actually Work 12:10 - The 1977 Dietary Guidelines & Obesity Epidemic 14:12 - The Real Solution: How to Fix Your Hormone ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ �� 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 #DrJasonFung #HealthTips #Metabolism #HormoneHealth � Learn more about fixing your metabolic health here: www.doctorjasonfung.com

Top Comments (10)

@Lappy-e9l 2026-07-13

I like that he's not backing down despite the backlash. Bro is an MD and he's actually helping people unlike shitty fitness influencers

76 15 replies
@itstime2bnice 2026-07-13

Thank you Dr. Fung! I read your Book"The Diabetes Code" when it first came out. I started reading it the day I got it and didn't put it down until I finished sometime during the night and dove right in the next day with low carb high fat and Im still alive! I also weigh about 130 lbs less than I did then. It's been quite a journey! There have been a lot of plateaus. But I've never given up. Yes it's been 9 years and I've still got about 50 lbs to lose. But I'm determined to get there! You deserve a Nobel prize and every accolade there ever was! Thank you Dr. Fung! You are a gift to humanity!

74 7 replies
@ajaykumargupta5952 2026-07-15

I wish I had this knowledge years ago 😅 I blamed myself for not having enough willpower when it was hormones all along. Then I discovered the Menopause Transition Playbook written by (Lisa.Grant) through a health podcast and everything shifted. 29 lbs gone, cravings under control, peace with food. Why isn't this the first thing doctors tell us?

55 2 replies
@danishh7263 2026-07-14

The truth is Dr Jason was reversing diabetes 15 years ago and other doctors all over the world were giving medicines to people...

40 1 replies
@mm771m 2026-07-14

Fung I've followed you since 2015 and glad the OG is still making content. You contributed to helping me lose 133lbs within a couple years after finding you.

38 2 replies
@anupamakohli3141 2026-07-14

Thank you Dr. Fang. Can you guide on cortisol and how to keep it low, post menopausal. And effect of fasting on cortisol

37 1 replies
@jtel5630 2026-07-13

Since discovering Dr Fung my life has changed. Thx

28 2 replies
@scottjones6624 2026-07-13

Home run! This was so beautifully scripted and OK for the non-medical professional. I am a doc and sending this onto my personal doc to spread if he finds it helpful.

25 3 replies
@DrJasonFung 2026-07-13

Check out my video on how to manage hunger - https://youtu.be/b3KbRvF_7Wg

22 6 replies
@LivingRetirement 2026-07-14

Another excellent video Dr. Fung! This is so very true. I am a post menopausal woman and started to entirely cut out highly processed foods about half a year ago while at the same time starting intermittent fasting. I have zero cravings left for those processed junk foods, I don’t sink in a hole after my meals, my brain is clear, I am energetic now. I did not need to lose much weight, but simply started for my health. Just feeling great!

14 1 replies

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