Jason Fung

Best Weight Loss Plans Reviewed (2021) | Jason Fung

Jason Fung

Show Notes

Dr. Fung reviews the best diets for weight loss as ranked by Google search. The third most popular diet in 2020 was the Paleo diet. While there is good scientific evidence to support it, it has been steadily losing popularity and Dr. Jason Fung explains why. The second most popular diet of 2020 was intermittent fasting, an intervention gaining steady popularity and supported by Dr. Fung. The most popular diet by far in 2020 was the Keto Diet. Check out my blog at https://medium.com/@drjasonfungMore Information:BOOKS:The Obesity Code - Reviewing underlying physiology of weight loss and how low carb diets and fasting can help. https://www.amazon.com/dp/1771641258?ref=exp_jasonfung_dp_vv_dThe Diabetes Code - Reviewing how type 2 diabetes is a reversible disease and dietary strategies. https://www.amazon.com/dp/B0795BLS8D?ref=exp_jasonfung_dp_vv_dThe Cancer Code - Scientific exploration of how cancer develops - https://www.amazon.com/dp/0062894005?ref=exp_jasonfung_dp_vv_dAmazon:USA - https://www.amazon.com/shop/jasonfungCanada - https://www.amazon.ca/shop/jasonfung**Fasting Aids**Pique Fasting Tea (recommended)https://www.piquetea.com/drjasonfungFasting Community and Coaching:https://www.thefastingmethod.com/YouTube Medical Lectures (for specialist physicians):1. The Roots of the Obesity Epidemic - https://youtu.be/q8BGYhreaco2. Therapeutic Fasting - The Two Compartment Problem: https://youtu.be/ETkwZIi3R7w​​3. Does Calorie Counting work? https://youtu.be/5F5o0a4p_3U​​4. Two Big Lies of Type 2 Diabetes - https://youtu.be/FcLoaVNQ3rc5. Reversing Type 2 Diabetes Naturally - https://youtu.be/mAwgdX5VxGc6. Insulin Toxicity - https://youtu.be/4oZ4UqtbB_g​​7. Saturated Fat - Friend or Foe? https://youtu.be/QetsIU-3k7Y8. Diet and Disease - https://youtu.be/2yoOx_7MLn09. Dangers of Fructose - https://youtu.be/pG89j432w-Y10. Insulin Resistance - https://youtu.be/dimP7IdM2Og11. Role of Hormones in Weight Loss - https://youtu.be/ZbnshVO4PRM12. The Obesity Code Lecture 1 - https://youtu.be/YpllomiDMX0Join this channel to get access to perks:https://www.youtube.com/channel/UCoyL4iGArWn5Hu0V_sAhK2w/join#jasonfung #drjasonfung #fasting #fastingbenefits #weightlosstips #intermittentfasting #drfung #fung #calories #weightlosstips #caloriesincaloriesout #weightloss #nutrition #diet #health #weightlosssolutionFollow me on Social MediaTwitter - @drjasonfung Instagram - @drjasonfung Timestamps:0:00 Intro0:35 The Paleo Diet2:40 Scientific Evidence supporting the Paleo Diet4:30 Problems with the Paleo Diet6:45 Intermittent Fasting 8:45 The Keto Diet12:00 History of the Keto Diet14:00 Combining the keto diet and intermittent fasting Learn more about your ad choices. Visit megaphone.fm/adchoices

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Oct 24, 2026

Learn more about Ancestral Supplements:Code: FUNGLink: https://ancestralsupplements.com/FUNG(Disclosure: This video was sponsored by Ancestral Supplements. Note that I use this brand personally at this moment because I believe in a whole food supplement)Most people still believe weight gain is simply about calories.But if calorie restriction alone worked long-term, why do so many people struggle?In this conversation, Dr. Jason Fung sits down with Julia from Ancestral Supplements to explore the hormonal model of weight gain, insulin, ultra-processed foods, and how modern eating patterns may influence metabolism.Topics discussed:• Why “calories in, calories out” may be incomplete• Insulin as a key metabolic hormone• How processed foods can affect hunger and satiety• The difference between whole foods and refined foods• Understanding insulin sensitivity• The role of nutrient density in traditional dietsWeight regulation is complex and involves more than simple math. This discussion explores how hormones, food quality, and dietary patterns may play a role.If you found this conversation helpful, consider sharing it with someone who may benefit from hearing it.—Learn more about Ancestral Supplements:https://www.AncestralSupplements.comFollow Ancestral Supplements on Instagram:https://instagram.com/AncestralSupplementsFollow Julia on Instagram:https://instagram.com/JuliaTheNutritionist—This content is for educational purposes only and is not intended as medical advice. Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Learn more about your ad choices. Visit megaphone.fm/adchoices

Oct 24, 2026

Most people are told that “weight loss = calorie deficit.” But the truth is, a caloriedeficit is a myth. Your body is not a simple calculator where you just subtractcalories and lose fat. In this video, Dr. Jason Fung explains the science behindwhy focusing only on calories fails, and why hormones, insulin, and fatmetabolism are the real keys to healthy and lasting weight loss.When people try extreme dieting or drug-induced appetite suppression, theyoften experience side effects like the dreaded “Ozempic face” — hollow cheeks,sagging skin, and an unhealthy look. This happens because subcutaneous fat(the fat under the skin) gets burned instead of visceral fat (the dangerous fataround your organs). The result: you may lose weight, but you don’t look or feelhealthy.Fasting works completely differently. Instead of just cutting calories, fastingchanges your hormones and metabolism:�� Insulin drops, allowing fat burning to start�� Growth hormone rises, protecting muscle and skin elasticity�� Autophagy activates, repairing tissues and preventing loose skin�� Visceral fat is targeted, which improves health and appearance�� Brown fat (through beiging) is activated, boosting metabolism naturallyThat’s why people who fast look healthier, stronger, and younger compared tothose who follow harsh calorie-restricted diets.In this video you’ll discover:✅ Why calorie restriction almost always fails✅ The science of subcutaneous vs. visceral fat✅ How fasting avoids the “Ozempic face” problem✅ The role of hormones in fat burning and aging✅ How fasting improves skin health, prevents sagging, and supports long-termfat 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 / Timestamps0:00 – Introduction: Why “calorie deficit” is a myth1:10 – The calorie counting problem explained2:30 – How calorie restriction affects your body3:45 – Subcutaneous vs. visceral fat: which one really matters?5:20 – Why fasting is different from dieting6:40 – Hormonal impact: insulin, growth hormone & fat burning8:00 – Fasting and skin health (no sagging, no hollow cheeks)9:25 – Autophagy and natural skin tightening10:45 – White fat vs. brown fat (the beiging effect)11:50 – Key takeaway: Why calorie deficit cannot ever exist=============================�� 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 So Learn more about your ad choices. Visit megaphone.fm/adchoices

Oct 24, 2026

What breaks a fast? Does tea, or coffee or cream or sugar break the fast? How about diet soda? Dr Jason Fung discusses what you can take during a fast and how this affects weight loss. These fasting variations can still be very effective for weight loss. Check out my blog at https://medium.com/@drjasonfungMore Information:BOOKS:The Obesity Code - Reviewing underlying physiology of weight loss and how low carb diets and fasting can help. https://www.amazon.com/dp/1771641258?ref=exp_jasonfung_dp_vv_dThe Diabetes Code - Reviewing how type 2 diabetes is a reversible disease and dietary strategies. https://www.amazon.com/dp/B0795BLS8D?ref=exp_jasonfung_dp_vv_dThe Cancer Code - Scientific exploration of how cancer develops - https://www.amazon.com/dp/0062894005?ref=exp_jasonfung_dp_vv_dAmazon:USA - https://www.amazon.com/shop/jasonfungCanada - https://www.amazon.ca/shop/jasonfung**Fasting Aids**Pique Fasting Tea (recommended)https://www.piquetea.com/drjasonfungFasting Community and Coaching:https://www.thefastingmethod.com/YouTube Medical Lectures (for specialist physicians):1. The Roots of the Obesity Epidemic - https://youtu.be/q8BGYhreaco2. Therapeutic Fasting - The Two Compartment Problem: https://youtu.be/ETkwZIi3R7w​​3. Does Calorie Counting work? https://youtu.be/5F5o0a4p_3U​​4. Two Big Lies of Type 2 Diabetes - https://youtu.be/FcLoaVNQ3rc5. Reversing Type 2 Diabetes Naturally - https://youtu.be/mAwgdX5VxGc6. Insulin Toxicity - https://youtu.be/4oZ4UqtbB_g​​7. Saturated Fat - Friend or Foe? https://youtu.be/QetsIU-3k7Y8. Diet and Disease - https://youtu.be/2yoOx_7MLn09. Dangers of Fructose - https://youtu.be/pG89j432w-Y10. Insulin Resistance - https://youtu.be/dimP7IdM2Og11. Role of Hormones in Weight Loss - https://youtu.be/ZbnshVO4PRM12. The Obesity Code Lecture 1 - https://youtu.be/YpllomiDMX0Join this channel to get access to perks:https://www.youtube.com/channel/UCoyL4iGArWn5Hu0V_sAhK2w/join#jasonfung #drjasonfung #fasting #fastingbenefits #weightlosstips #intermittentfasting #drfung #fung #calories #weightlosstips #caloriesincaloriesout #weightloss #nutrition #diet #health #weightlosssolutionTime Stamps:0:00 Intro1:23 Dry Fasting2:46 Water Only Fasting3:23 Green Tea helps fasting4:28 Coffee and Fasting5:30 Does a small snack stop weight loss?6:57 Diet soda and Fasting7:30 Supplements and Fasting8:55 Juice Fasting9:22 Case Study Learn more about your ad choices. Visit megaphone.fm/adchoices

Oct 24, 2026

Why intermittent fasting is much more effective for weight loss than simple calorie restriction. Fasting allows insulin to fall which allows the body to use its stores of body fat for energy, where simple cutting of calories may or may not do so. Just cutting calories does not fix the hormonal changes of obesity. Check out my blog at https://medium.com/@drjasonfungMore Information:BOOKS:The Obesity Code - Reviewing underlying physiology of weight loss and how low carb diets and fasting can help. https://www.amazon.com/dp/1771641258?ref=exp_jasonfung_dp_vv_dThe Diabetes Code - Reviewing how type 2 diabetes is a reversible disease and dietary strategies. https://www.amazon.com/dp/B0795BLS8D?ref=exp_jasonfung_dp_vv_dThe Cancer Code - Scientific exploration of how cancer develops - https://www.amazon.com/dp/0062894005?ref=exp_jasonfung_dp_vv_dAmazon:USA - https://www.amazon.com/shop/jasonfungCanada - https://www.amazon.ca/shop/jasonfung**Fasting Aids**Pique Fasting Tea (recommended)https://www.piquetea.com/drjasonfungFasting Community and Coaching:https://www.thefastingmethod.com/YouTube Medical Lectures (for specialist physicians):1. The Roots of the Obesity Epidemic - https://youtu.be/q8BGYhreaco2. Therapeutic Fasting - The Two Compartment Problem: https://youtu.be/ETkwZIi3R7w​​3. Does Calorie Counting work? https://youtu.be/5F5o0a4p_3U​​4. Two Big Lies of Type 2 Diabetes - https://youtu.be/FcLoaVNQ3rc5. Reversing Type 2 Diabetes Naturally - https://youtu.be/mAwgdX5VxGc6. Insulin Toxicity - https://youtu.be/4oZ4UqtbB_g​​7. Saturated Fat - Friend or Foe? https://youtu.be/QetsIU-3k7Y8. Diet and Disease - https://youtu.be/2yoOx_7MLn09. Dangers of Fructose - https://youtu.be/pG89j432w-Y10. Insulin Resistance - https://youtu.be/dimP7IdM2Og11. Role of Hormones in Weight Loss - https://youtu.be/ZbnshVO4PRM12. The Obesity Code Lecture 1 - https://youtu.be/YpllomiDMX0Join this channel to get access to perks:https://www.youtube.com/channel/UCoyL4iGArWn5Hu0V_sAhK2w/join#jasonfung #drjasonfung #fasting #fastingbenefits #weightlosstips #intermittentfasting #drfung #fung #calories #weightlosstips #caloriesincaloriesout #weightloss #nutrition #diet #healthTime Stamps:0:00 Intro0:18 Type 2 diabetes reversal case study1:16 Calories In Calories Out1:52 Losing weight with calorie counting fails2:51 Changing how we think about calories3:55 What happens to the calories we eat4:29 Energy balance during intermittent fasting5:58 Why calorie counting doesn't work7:36 Intermittent Fasting regimen for reversing type 2 diabetes8:24 Tips for intermittent fasting8:54 Free resources for intermittent fasting Learn more about your ad choices. Visit megaphone.fm/adchoices

Oct 23, 2026

I’m sharing my personal experience with the fasting mimicking diet (FMD). I’ll break down how it works, the science behind it, and whether it’s worth trying.I’ve been talking about fasting since 2014, but one of the few researchers exploringfasting at the time was Dr. Longo in California. He discovered that fasting triggersbeneficial repair processes in the body, but fasting for five days can be tough. That’swhere the fasting mimicking diet comes in — it allows you to eat small amounts ofspecially designed foods while still keeping your body in a fasting state.�� What You’ll Learn in This Video:✅ How the fasting mimicking diet works and the science behind it✅ Why lowering nutrient sensors like insulin and mTOR matters for health✅ Health benefits shown in studies on weight loss, diabetes, cancer, and more✅ My personal experience – what worked, what didn’t, and how it felt✅ Pros: Structured, easier than water fasting, good taste, and convenient✅ Cons: It's pricey, but it replaces five days of mealsI’ve done water fasts before, and they’re not easy — especially on days 3 and 4. Butthe FMD made it much more manageable since you’re still eating a bit of food. Plus,it’s less stressful and more socially convenient when eating with family.I’ll also walk you through exactly what’s included in the FMD kit — from soups andbars to teas and vitamins — and share my thoughts on the taste and overallexperience.If you’re curious about fasting or looking for an easier way to experience the benefitsof fasting, this video is for you!�� Watch now and let me know your thoughts in the comments!▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▶️ Timestamps/Chapters00:00 – Intro00:20 – Fasting Mimicking Diet01:27 – How can a 5 day fast be made easier?03:38 – Why Mimic Fasting? Why not just Fast?05:52 – Extended fast on FMD: less food ‘obsession’06:55 – Disadvantage (Fasting Mimicking Diet)7:53 – Prolon (Promoting health and longevity)08:28 – 5-day program (Prolon)=============================�� BOOKS:�� The Obesity Code - Reviewing underlying physiology of weight loss and how locarb diets and fasting can help. https://www.amazon.com/dp/1771641258?...�� The Diabetes Code - Reviewing how type 2 diabetes is a reversible disease andietary 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 andWeight 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 ����▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬�� �� Thank you for Watching#Fasting #FastingMimickingDiet #DrJasonFung #WeightLoss #IntermittentFasting Learn more about your ad choices. Visit megaphone.fm/adchoices

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