Show Notes
Metabolic Flexibility and How the Lumen device can help with Fasting | Jason FungThanks to Lumen for sponsoring! Go to http://lumen.me/fung to get 15% off your Lumen today.Hi, I'm Dr. Jason Fung. Today, we’re diving into metabolic flexibility – what it is, why it matters, and how you can measure it with a simple handheld device called Lumen. This video is sponsored by Lumen, and you can get a discount with the code below!Metabolic flexibility is the ability of your body to switch between burning glucose and fat for energy. This is crucial for adapting to different energy needs and maintaining good health. With the Lumen device, you can easily measure your metabolic flexibility at home by tracking the carbon dioxide you exhale.In this video, we’ll cover:Metabolic Flexibility – Understand how your body switches between burning carbs and fat.Lumen Device – Learn how this device measures your respiratory exchange ratio (RER) to determine what fuel your body is using.Importance of Metabolic Flexibility – Discover why being metabolically flexible is essential for preventing obesity, insulin resistance, and diabetes.Scientific Studies – Explore research showing how Lumen can help diagnose and improve metabolic flexibility.Practical Tips – Get advice on using fasting and diet adjustments to enhance your metabolic health.Whether you're looking to optimize your metabolism or learn more about metabolic health, this video has valuable insights for you. Don’t miss out!Embark on your vacation with confidence, armed with these three keys to a successful weight loss plan. Hit the like button 👍, subscribe for more health-focused content, and ring the notification bell 🔔 to stay informed!if you want to try the lumen for yourself, You can get a 15% off code : www.lumen.me/fung 👉Join my membership for perks:https://www.youtube.com/channel/UCoyL4iGArWn5Hu0V_sAhK2w/join▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▶️ Timestamps / Chapters00:00 Intro00:30 Metabolic flexibility 01:53 Feeding - Insulin Rises Stores Sugar and Fat 04:23 How much Glucose Burning depends on07:00 Response to glucose load ( carbohydrates )07:56 Obesity Facts 08:48 Lumen help fasting 11:00 Outro=============================📌 BOOKS:👉 The Obesity Code - Reviewing underlying physiology of weight loss and how lowcarb diets and fasting can help. https://www.amazon.com/dp/1771641258?...👉 The Diabetes Code - Reviewing how type 2 diabetes is a reversible disease anddietary 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- https://drjasonfung.medium.com🔹 Community- https://www.thefastingmethod.com🔹 Facebook - https://www.facebook.com/jason.fung.313🔹 Instagram - https://www.instagram.com/drjasonfung/🔹 Twitter - https://twitter.com/drjasonfung▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬📌 YouTube Medical Lectures (for specialist physicians):▶️ The Roots of the Obesity Epidemic: https://www.youtube.com/watch?v=q8BGYhreaco&t=0s▶️ Therapeutic Fasting - The Two Compartment Problem: https://www.youtube.com/watch?v=ETkwZIi3R7w&t=0s▶️ Does Calorie Counting work?:https://www.youtube.com/watch?v=5F5o0a4p_3U&t=0s▶️ Two Big Lies of Type 2 Diabetes:https://www.youtube.com/watch?v=FcLoaVNQ3rc&t=0s▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬If you liked the video, Please Do Subscribe My Channel 😉😍Keep Supporting me So I can Continue to provide you with free content eachweek!!😇▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬😍 😍 Thank you for Watching!#MetabolicFlexibilityandHowtheLumendevicecanhelpwithFastingJasonFung #MetabolicFlexibility #Lumen #wightLoss2024 #jasonfung #drjasonfung #drfung #fung #nutrition #diet #h Learn more about your ad choices. Visit megaphone.fm/adchoices
More from Jason Fung
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/ETkwZIi3R7w3. Does Calorie Counting work? https://youtu.be/5F5o0a4p_3U4. 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_g7. 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
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
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/ETkwZIi3R7w3. Does Calorie Counting work? https://youtu.be/5F5o0a4p_3U4. 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_g7. 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
Do calcium supplements prevent osteoporosis? Are they harmful? The difference between calcium in food and supplements. A cautionary tale of how bad science led to widespread use of a potentially toxic substance - the calcium supplement. 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/ETkwZIi3R7w3. Does Calorie Counting work? https://youtu.be/5F5o0a4p_3U4. 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_g7. 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/joinTimestamps0:00 Should you take Calcium Supplements?5:45 Osteoporosis and Calcium18:54 Hip fractures and calcium supplements34:53 Risks of calcium supplements39:40 Cancer and calcium supplements#jasonfung #drjasonfung #fasting #fastingbenefits #weightlosstips #intermittentfasting #drfung #fung #calories #weightlosstips #caloriesincaloriesout #weightloss #nutrition #diet #health Learn more about your ad choices. Visit megaphone.fm/adchoices
Fasting, Muscle Loss and Protein Needs - the facts | Jason Fung💪 Does fasting burn muscle? Absolutely not! This video explains why fasting doesn’t lead to muscle loss and dives into how the body uses energy from stored fat and glucose rather than breaking down muscle. Dr. Jason Fung discusses the science behind muscle preservation during fasting, the role of protein, and how muscle growth is actually tied to exercise, not just protein intake.Topics Covered:How fasting impacts muscle massWhy protein intake is important but often overestimatedUnderstanding muscle strength and energy during fastingStudies on fasting and muscle strength improvement 🧪Key Takeaways: 1️⃣ Fasting primarily uses fat and glucose, sparing muscle tissue2️⃣ Muscular strength remains stable, even during long fasts3️⃣ Overeating protein doesn’t necessarily build more muscle; exercise is essential 💪4️⃣ Fasting may even improve heart muscle health after a heart attack ❤️Watch to learn more about the fascinating link between fasting and muscle health. Don’t let myths hold you back from the benefits of fasting! 🌟👉 Subscribe for more insights on fasting and health📧 Contact us for questions▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ▶️ Timestamps/Chapters 00:00 – Does fasting burn your muscle?00:57 – How do you grow Muscle ?01:55 – This is not a higher protein diet is not good for weight loss03:40 – there’s lots of these longevity experts are saying that04:46 – there’s two standard ways to do it one is called the BIA bioelectrical impedance analysis 05:34 – the other way they do it is a DEXA scan, which is dual energy x-ray absorb imagery 11:05 - Outro ============================= 📌 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?... 👉 The Diabetes Code - Reviewing how type 2 diabetes is a reversible 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- https://drjasonfung.medium.com 🔹 Community- https://www.thefastingmethod.com 🔹 Facebook - https://www.facebook.com/jason.fung.313 🔹 Instagram - https://www.instagram.com/drjasonfung/ 🔹 Twitter - https://twitter.com/drjasonfung ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 📌 YouTube Medical Lectures (for specialist physicians): ▶️ The Roots of the Obesity Epidemic: https: //www.youtube.com/watch?v=q8BGYhreaco&t=0s ▶️ Therapeutic Fasting - The Two Compartment Problem:https: //www.youtube.com/watch?v=ETkwZIi3R7w&t=0s ▶️ Does Calorie Counting work?: https://www.youtube.com/watch?v=5F5o0a4p_3U&t=0s ▶️ Two Big Lies of Type 2 Diabetes: https://www.youtube.com/watch?v=FcLoaVNQ3rc&t=0s ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 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! #TheBenefitsOfFasting #FastingWeightLoss #IntermittentFasting #BenefitsOfFastingForTheBody #BenefitsOfFastingForTheBody #CuttingCalories Learn more about your ad choices. Visit megaphone.fm/adchoices