Dr. Jason Fung – ‘Therapeutic Fasting – Solving the Two-Compartment Problem’

Dr. Jason Fung – ‘Therapeutic Fasting – Solving the Two-Compartment Problem’


100 Replies to “Dr. Jason Fung – ‘Therapeutic Fasting – Solving the Two-Compartment Problem’”

  1. Prolonged fasting rocks!
    Furthermore, a whole food plant-based diet is the only thing EVER proven to reverse and cure cardiovascular disease PERIOD!

  2. IF is a fantastic tool for anybody who is fitness minded. Short, controlled fasts that let you hit ketosis for ~6hrs a day.

  3. I've lost almost 50 lbs since February with intermittent fasting and light strength training 3x a week. I feel way better in general (including after I eat), I have more energy, and a better ability to concentrate. I highly recommend this guy's advice.

  4. Well…… with a reduced metabolism you can't eat as much, but the candle is burning lower and your life should be longer due to that, as long as you don't let the weight go back up.

  5. I would like to ask about anaerobic and aerobic metabolism as it relates to exercise. Have been taught that generally speaking after one hour of aerobic exercise glycogen stores are depleted and a person needs to go to a protein sparing/carb energy replacement to stave off muscle breakdown for energy. Fat utilization and convertion for energy is harder to convert in an exercise environment above ‘zone 2’ (low aerobic stress). Any thoughts.

  6. I fasted for 21 days and lost about 16 pounds. The first 2 weeks were the hardest, and I would always torment myself by watching food shows. But then after 2 weeks, I just gave up and didn't care about food anymore. It was only after I started eating again that my cravings came back. Either way, it was a very good decision for me and I look better and i'm much happier.

  7. Theres no long lived populations or centenarians that lived on a low carb diet . you cant even find a few long term low carb healthy people , but the fasting part is point on.

  8. Keto is bad if not during intermittent fasting because on plain keto you will lose muscle mass because the body can conserve more energy by burn muscle than fat. And fasting is muscle sparing because of the extra human growth hormone released.

  9. Wonderful! I've done a few two and three day fasts now and was surprised by how easy it was once I'd made the decision. Btw you rarely enjoy a meal as much as when you break it.

  10. the decrease in metabolism is from losing fat and muscle

    the decrease in metabolism is from losing fat and muscle
    the decrease in metabolism is from losing fat and muscle
    the decrease in metabolism is from losing fat and muscle
    the decrease in metabolism is from losing fat and muscle

  11. I get most of Dr Fungs lectures but when it comes to fasting for a diabetic type 2 condition, he does not explain for how long does someone do this? My Dr has me taking metformin, glipizide, Atorvastatin and Lisinopril. I would love to get off these drugs. I also never had a weight problem, if anything, I had a problem keeping weight on. I was 250 but have been maintaining 210 or so without even trying. I also have Graves disease which could explain that i guess. I would also love to know what i should eat everyday,its very difficult just eating salad.

  12. But Doc, what about Food corporations? What's going to happen to their profits once people stop eating 3 times a day for several days throughout the week?

  13. Is a good terapeutic diet, not only for sibo, its good for gallbladder sludge to, to prevent the gallstones. And for fatty liver! 3 days waterfast cleans the bile sludge. This is another huge misunderstanding by today's doctors, the bile sludge. The Bile sludge is a much more complex problem. Bile sludge is a disease of the fatty liver and the injured gallbladder wall complex. Bacterias fungus adhere to the damaged gallbladder wall because the bile is not sufficient quality and quantity. If the patient eat any sugar , carbs, or soluble fiber, the gallbladder gas because of the microbes in the gallbladder wall, inflates the gallbladder, leading to further damage to the gallbladder wall.

    The only cure for gallbladder sludge is , a carnivorous diet with the sometimes 2-3 days waterfast, and the daily jogging, nothing else! Thanks for watching.

  14. I have been on Keto for 8 months, lost 33 Lbs (I'm not obese, I'm not super overweight, just needed to bring down 2 sizes from my Fat 6 to my normal 4) .. found this video and now I understand what just happened to my body … everything was going great and loving everything he was explaining, I even subscribed to his Chanel .. then he totally LOST MY ATTENTION because he had to use the damn guy who tried to destroy America !!!! The weakest EX(thank God) President .. with a Motto that FAILED MISERABLY … sorry but Bye

  15. Does the fat in your arms and legs before the mid section? Maybe that’s the reason people think you burn muscle?

  16. There is nothing negative about the content of this video…how are there any dislikes …..to everyone who is concerned with mind and body health let's share and like this video to the max….I started keto and IF I feel great. I wasn't even fat just a little guy a d bloating after eating bread and soda…so I went gluten free a d then gave up soda and discovered keto and it just made sense

  17. Every time I hear him I learn more. And just to reinforce his message. I reversed Type 2 diabetes through low carb and intermittent water only fasting. Also I had under active thyroid and I am now off the thyroid medication and my levels are normal ! In the UK (maybe world wide ? ) Type 2 diabetes is diagnosed as 48+. Pre diabetic 42-47. Normal is 20-41. In October 2017 my HBA1C test showed an underlying blood sugar level of 65. By June 2018 it was down to 40. It went down to 37 by December 2018. It did go up is 39 on July 2019 when I stopped the fasting. I am now back on fasting and feeling great ! I want another test in October to make sure there is nothing else wrong. This man is my hero ! I have non alcohol related fatty liver disease. I am hoping that this is reversing as well, but the doctors are reluctant to do another scan. My moods have improved as well, also my capacity to learn, and my memory has improved. I wish I had known about this years ago !

  18. Can anyone explain why there's such a difference between fat oxidation and carbohydrate oxidation between days 21 and 22 at 25:00?

  19. I have been on Keto about 3 months. (Historically I was a big eater and drinker) I just completed my first extended Fast. Five complete days fluids only. I couldnt believe the lack of serious Hunger Cravings. Next time 7 Days!

  20. Also I fasted on water for 2 weeks several times and NO, energy do not increase. You getting weaker and weaker every day.

  21. I did a couple of multi-day water fastings. Works like a charm and isn´t that difficult. Plus, your brain clears up significantly once Ketosis kicks in.

  22. If you fast, the great industrial food industry will get less profits to pay their CEO's millions in revenues by the end otf the year. So, it is not recommended.

  23. I stopped watching this video at about minute six, due to the offensive cursing! I am frequently surprised that seemingly intelligent people will insert unneeded/unwanted cursing, into an otherwise thoughtful, helpful, video.

  24. I always said I wish there was a pill that would substitute for eating in order to lose weight, not having to think about food. As a Muslim, I have never had any trouble with our yearly 30 day sun-up to sun- down fasting. Keto plus fasting is my longed-for magic pill!

  25. Mylife has been horrible for the last 10 years of having diabetes. From depression to trying to drink myself to death for years. Been in and out of hospitals with sepsis,utis, gross stuff happening to my body. Leaving ally friends and family out of my life so they don't see my like this. I thought life was over. Then I saw a guy named David goggins on Joe Rogan podcast. He's a real life superhero I say this people he's saving mylife one day at a time. One month ago I said to myself I want to live. I was 275 iam em now going to the gym twice a day and doing intermediate fasting and iam now 245 working my butt off. It's a struggle I fall off once in a while then I remember what David says people only are using 40% so I go at the gym tell I can stand it's working thank you to these people like Dr. Here and David goggins, Joe Rogan for giving my another chance in life.

  26. Great information, except for the part where he implied that cockroaches and insects are NOT running the world. The policies and proclamations coming out of most national capitals do not seem to be biased in favor of human beings.

  27. Medical science has become a scam in much of its practice. Let's spread the word and help the real doctors! Let us isolate the salesmen disguised as doctors!

  28. Not easy to starve yourself. So now we are back to blaming the victim. What happened on fast day 382 that he didn't go to 383? How is restricted calories different than fasting? What about the inability to control appetite, my fault? Okay I get the compartment partition problem but what about hormones re appetite? I hurt, if I don't eat and I have pain, I could go for the record at 383 cays. Lets go….but how do you keep me from breaking my restraints and eating a nurse? Fat people should not have hunger and that ya'll don't address that bothers me. Lawson di Ransom Canyon any analyst could find me. Peace.

  29. this guy is really good… i love his simplistic way of comparing a refrigerator and a freezer… and it makes such perfect sense…

  30. will fasting every other day also help lower my blood pressure. I am looking for natural ways to lower blood pressure without medicine

  31. This explains how I was able to lose so much weight a few years back. My eating window was only 4 hours long. From 2-6 pm. I lost over 100 lbs in about a year and a half.

  32. Thanks GOD for the YouTube channel and the messages from Dr Fung regarding fastings the best cure for diabetes.
    This is amazing knowledge for the ones who have an ears to hear.

  33. thank you dr fung for this wonderful information about health.. i tried this because of my health since i gave birth to my baby and he's died after i gave birth beacause of my higblood,increase also my sugar and difficulty of breathing now i get better almost 4days fasting and i will continue this lifestyle because i want to live long and wishing again to have another baby in the future now i realized health is wealth tlaga lalo n pg namatayan ka ng anak dahil sa wlang desiplina sa pgkain kya ako ngkaroon ng highblood now i suffering heart disease but thank you dr fung now i feel better because of you.. love from Philippines 🙂

  34. People that are not on keto and diabetic or pre-diabetic need to watch their sugar levels carefully the first couple of weeks! I thought that's one thing he should have had in the video. Before on keto I almost passed out while driving I'm a second or third day of a fast, needed to get carbs fast, didn't know any better at the time, chose a candy bar.

  35. Dr Fung said "Right" 152 times in 36 minutes. That's 4.22 times a minute. He threw in a few "like" and "ok" used in the same way he was using "right." It's unnecessary and extremely irritating. Other then that it was an interesting talk. 🙄

  36. THNX FOR SHARING, Mmmm, I am too thin and had always the opposite problem than the fat people have! But I cannot have breakfast at the breakfast time! So I eat around 12:00 or 13:00 hs every day and then have 2 meals, and if I get hungry again I try not to do it after 20:00 hs., and if I do not eat bread, milk products and suggary stuff I feel just great! If I eat bread it will charge me with 3 days of deep tiredness, JUST 1 PIECE OF BREAD OR 1 CAKE!! It is too expensive, so I am not eating it, milk products and suggar included, and grains, nooooo, not anylonger!

  37. I have often heard proponents of fasting talk about cavemen diet and the fact that Hunter gathers would have had periods of enforced fasting, but the truth is there was shortages of food for many people in the western world right up until the mid twentieth century. I am a farmer and I am Irish and I know that food shortages were common all through the nineteenth century even leaving aside the devastating famine of the 1840s. There are also times of the year when farmers stores were bare. Complete food security is something new and even today is not a reality for everyone on our planet.
    Thanks Dr Fung

  38. Metabolism nonsense. Yes a person who loses 200lbs will need less calories when they weigh 150 lbs. Metabolism slows down .it's not a bad thing. Yur not going to be able to eat the amount. Get over it.

  39. I've never believed in "weight loss diets". They don't work. It has to be a lifestyle change, a new lifetime way of eating. I have gone back to the way we ate when I was a child and weren't so "good-off" as most of the people where we lived. 2 meals a day on weekends and during the summer, during school it was 3 because we got lunch at school, little to no sweets, no processed foods. One Sunday a month everyone fasted from Saturday night until 6pm on Sunday when we had a small meal. My family made their own bread, made meals from real unprocessed food and we cooked with lard and bacon fat!! Now I've found that the Ketogenic "Diet" is basically the same thing that I lived with as a child and am doing now. The only thing I have changed from then to now is I'm not eating grains and cooking with bacon drippings or lard again instead of Crisco and using real butter instead of margarine which I did for decades after leaving home. Strange how things come together sometimes. Although, unlike in my childhood where I didn't have an addiction to sugar, I struggle with that craving very much every so often these days.

  40. Hello, I was just wondering if someone suffering from lupus can be heal with water fasting? If yes what king of water fast do you recommend? Thank.

  41. I have now changed my medical practice to include intermittent fasting as a way to manage overweight & obesity, diabetes & fatty liver. I'm met mostly with skepticism by most of my colleagues. It's disappointment. We've been treating these medical problems incorrectly (promoting low calorie diets) and it's high time to change.

  42. For me i am good to fast for a while, but after a workout, or a long day of work, I'M REALLY HUNGRY. any tips for that? also, i feel like if i am working all day, i need food to give me energy to work, or to replenish myself. is that logic fair? or am i just making excuses?

  43. I LOVE Jason Fung and agree 100% with his arguments, but I gotta day he says “…right?” wayyyy too often during his talks. When he talks like that, he’s pretending that your agreement with his argument is a foregone conclusion, RIGHT?

  44. He is spot on with 99% of this, but he is definitely wrong about burning muscle with fasting. I do and most people do unless genetics are good at avoiding that.

  45. Carbohydrates are addictive. It is so hard to get away from processed, carbohydrate food, but it can be done. As an experienced low carb dieter and intermittent faster I know the dangers of carbs.

    Carbohydrates cause hunger pangs, protein and FATS do not. Start on a low carb diet meat, fish, cheese, etc for four days or so to achieve ketosis. Once in ketosis it is easier to reduce food volume because hunger pangs aren't as bad and don't last long. Then start on intermittent fasting. Start fasting after supper, sleep through the night and fast during the day for as long as possible. A busy schedule will make it easier to overcome the lunch and break habits. Instead of eating for lunch, go for a brisk walk.

    Distraction techniques work if the habit and compulsion to eat becomes overwhelming. But avoid carbs, eat proteins and fats. Take multivitamins. After a week start eating greens. A great substitute for pasta is cabbage cut into thin strips as a base for meatballs or bologniaise sause, or use whole cabbage leaves for lasagne.

    No one is perfect or superhuman, so expect to fail. Be gentle on yourself. Pick a new date and start again. It gets easier over time.

  46. Fascinating… until he brought Mohammed, Christ and Buddha into it. What a BS statement in otherwise excellent presentation.

  47. Greetings.

    I've read many positive comments, and congratulations to all whom are benefitting.

    If I may say this very respectfully…as "fasting" is a common talking point.

    Does not the "Holy Bible" talk about fasting?

    I'm not pushing any agenda…only in my opinion there's many "Truths" in this beautiful book.

    Have a great day/week ahead.

  48. Okay so low calorie is bad and slows the metabolic rate. So what do we do?? Doing the fasting this is awesome but that’s just less calories?? Right so how is this going to not slow it down? What do I do? Do I try to get a bunch of food in the time period? I’ve been doing the 18:6 fasting. But sometimes I end up just eat OMAD. But I’m just eating 600 calories sometimes. Is that bad??? Am I going to screw up the metabolism right is it just going to work out fine since I am only eating the one time?? I love the fasting idea I just feel like he doesn’t tell you what to eat to keep it away??? Anyone? Did I just miss it?

  49. Well i been eating once a day for 30 years, and carbs make me feel sick and guess what my Lipedema just keeps growing. For me eating once a day is like other people eating 3x a day. Its so normal for me that it makes 0 difference to the way i feel or my body. I really wish they stop generalising and saying it works for everyone. There are people who have a Fat disorder which is genetic and no matter what they do it wont go away, because they have sick fat cells.

  50. I’m glad I saw this, I’m going to keep this simple equation in mind and fast more often, but I did lose a lot of weight a few years ago but my legs was already kind of skinny but that weight lost left them looking like toothpicks. All my fat is around my waist, are you saying that was fat that I lost on my legs and not muscle. I just have to be more disciplined and patient. I know counting calories is useless. I’m 67 and diabetic and RA, the steroids I take is keeping my sugar a little high. I love the simple way and illustrations you use. Jesus fasted for 40 days and that’s my leader. Great inspiring talk. Thanks

  51. I used IF to lose 3 stone I went to see the doctor after reversing pre diabetes and guess what he told me "EAT MORE" not eating isn't practical. lol

  52. If you loose wight your body needs less calories then before to maintain itself. It doesn't mean that you're slowing down your metabolism (temperature goes down etc).

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