Absolutely brilliant Dr Fung!! I lost 26 lbs doing 20 hour fasting with one of two meals. I focus on: 1. Eating until I'm satisfied (not stuffed) 2. Focus on nutrients (meats, eggs, seafood) 3. Walk after my meal. Fasting can also extend your lifespan by 15 years 🤓
little hint....your blood goes to your stoach to digest the food. If you walk or do any execise you are delaying your digestion by taking away the blood from your belly. = )
@Shawn Turner I did get light headed but I put pink salt in my water and I felt fine. Day 2 was also the day I felt I had to eat. But I just went for a walk and stayed on my water so that the urge would pass.
Because of you Dr Fung I've lost 4st 5lb it took me 8 months and I'm now learning how to maintain. All my friends are now doing 18:6 fasting and are doing really well. You truly changed my life and have given me back my energy. I used to take my inhaler every day I haven't had to use it once so thank you please keep up your life changing work. Best wishes from 🇬🇧 uk.
Talking a out inflammation I fell cleaning a house Friday and sprained my wrist ....so I immediately started ice packing my wrist.. It's feeling better ! I also have started stop eating at 3 or 4 in the evening time. I also do not snack that's a non scale victory.
Following your channel as well as Sten Ekbergs for about four weeks now and it really opened my eyes. Started OMAD with 124kg(and definetely insuline resistent) on January 27th and feed somewhere between Keto and low carb/high fat. Lost 7 kg so far and feel excellent, no hunger and no side effects. Just for fun I measure Blood glucosis three times a day and have perfect levels for the last two weeks, always beetween 80 and 110mg/dl. Last week I had my blood works done, results will be in tomorrow. Really looking forward to it. Thanks so much, you are a live saver!
He is a sensationalist quack and, to me, can't be compared with Dr. Fung. Look at some of his UA-cam video titles, "Top 10 Foods That Destroy Your Gut," "Top 10 Foods That Should Be Banned," "Get Plastics Out Of Your Body & The Oceans," "Your Doctor Is Wrong About Aging." No scientific ethics or credibility. Do yourself a favor and unsubscribe to Ekberg's channel.
Good Luck to you Sir! Consider videos by Dr. Sten Eckberg and Dr. Ken Berry. Lost 63 pounds in 6 months and all blood markers drastically improved. My personal doctor was in shock.
@@suzeauster2223 I've been fasting for 6 weeks I started off 16.8 for 2 weeks, then 17.7 for 2 weeks and then now to 18.6 for 2 weeks I've lost 6 kg in 6 weeks the lowest weight I've ever been. I'm going to carry on on the 18.6 it really works. you get used to it. I was going to the gym and my weight would not drop off. I now walk daily and I fast . I wish I knew this before so I would not waste my time dieting or going to the gym. xxxxx good luck as this works xx
Another spectacular talk on a topic of great importance. Thanks Dr Fung, for being so bold as to imagine a healthier human race, and share strategies showing those listening the way.
Always a pleasure watching your videos Dr. Fung! I can't believe how much younger I feel since starting intermittent fasting and losing 150lbs. I feel like 38 instead of 58! I feel so well. Thank you for your books and taking the time to teach us. 😊🙏
Jessica!!! You lost 150 pounds!!! Super congratulations!! I’m so happy for you!!! I’m new to IF. I lost 10 pounds in this last month. I’m very pleased and intend to keep going. 🏆👍🏼❤️ congrats to you, again!!!
@@karenbuchert3377 Thanks so much Karen. It took me a little over a year. I'm loving my new life. Watch Dr. Fung's videos, interviews and lectures. And read his book The Obesity Code. Sooo much valuable information to help you. Good luck and be well 😊🙏
Crikey losing 150lbs! That's pretty much what I weigh. You must have been constantly eating to get to that size. I just cannot comprehend allowing myself to put on sooooo much weight. At some point well before I would have realised something was wrong or looked in a mirror and would have realised that I had to STOP eating or radically changed what I ate and how frequently. But as I say I cannot even comprehend putting on 50lbs of additional weight let alone 150lbs!! Good that you have since realised and have now slimmed down for your own health, quality of life and massively reducing your risk of dying prematurely because of being chronically obese.
I am a type two diabetic started fast ing just skipping breakfast my a1c is 5.4 every time for my 6 month check up its was Jason fug who thought me this my doctor said my diabetes is well controlled I also eat a lot of vegetables frozen and raw sometimes salmon I also fast 3 day sometimes 4 days this year I am to make sure I fast 64 days 1 day for every day of my life
Always enjoy videos, probably the best info on this subject. I subscribe to eating less with intermittent fasting and minimum weight training. So less food and less exercise are best. Anything to keep inflammation in check.
Another brilliant well-presented video Dr. Fung. I have followed your recommendations religiously for 2+ years now: down 40 kgs and all health markers highly positive. Focus on IF. Extremely grateful Sir. Thank you.
@@anaquintero1815 It is important for misinformation and bullshit be called out so it is not spread around by anti social anti science twits and ignorant people.
@@jgrysiak6566 I gained back 36 pounds and am leveling off. I was 285 and got down to 174, then I went up to 246. I'm currently at 215 and happy. 174 was far too light for my frame and I looked sickly because my skin was so loose and just hanging off me. I looked like a Holocaust survivor. I quit sugar over a year ago and just that in itself makes you feel amazing. I'll NEVER go back to Sugar and will severely limit Gluten in the future. When I lost the 111# I combined Intermittent Fasting with HARDCORE Keto. When I say "Hardcore" I mean eating as close to ZERO carbs as possible. Sometimes the one meal I had for the day was barely large enough to fill a hand. 3, 4, and 5 day fasts also helped shed the pounds. I went from a size 50 pants down to a 34, and a 3xl shirt to a Med./Large. Best decision I ever made. IF/Keto is incredibly easy for me because I'm cheating, lol. By that I mean that I have a condition that's SUPER conducive to IF. I have Gastroparesis which means that my digestion works SUPER SLOWLY. A small amount of food is enough to make me feel stuffed. Since I eat one meal a day the transfer to IF/Keto was a piece of cake, all I had to do was change the type of food I ate.
@@Crisper333, gotta get the oil out. It is 4000 calories a pound. Eat lotsa vegetables, fruits, potatoes, yams, sweet potatoes, whole grains, pasta & beans.
I lost 60 lbs by just ignoring and actively fighting hungers peigns and eating 1 massive meal a day(taking vitamins eating large varied healthy meal). While intense biking at least 20mins a day 5 days a week.
As you stated, stopping eating before 80% fullness is not always easy nor automatic. It takes practice and mindfulness. Social pressure can help but is more often a hinderance particularly at social gatherings or when the food is already on one's plate. Fasting itself for whatever goals can also be difficult due to social pressure. One of the best pieces of advice I've taken from your lectures/books is "CHANGE THE DEFAULT". We must change our environment, habits, and social pressures to make it easier and normal to make better health choices such as fasting, Thank you for educating us on the benefits of fasting and restricted calorie intake which make it paramount for us to: CHANGE THE DEFAULT
Agreed. Culturally as well it's very hard to avoid when food is associated with generosity and not consuming your extended families food is a sign of bad manners or a lack of gratitude. Unfortunately with family and friends I purposely arrive to events at a later time once festivities have well and truly begun so as to not offend anyone or make it obvious that I won't be eating everything. It does help though when friends/family are supportive and mindful but some of them are also jealous/snarky so you can't win all the time sadly.
@@jgrysiak6566 It's not just about what other people do. It's also about changing the default so that the people who love us, our family and friends, will support our fasting as not only healthy but normal. They care about us, so their worry/concern can be very stressful for everyone.
@@AzaleaBee , don't worry about their support, u get all the support from videos & live chats. Spread the good news & start your own group of like minded people!
Cave man would have turned into us too if they had a grocery store on every corner. Thanks for the research and spreading the knowledge of how to live a better life. I'm so boosted on intermittent fasting. Energy for days.
A scientist named Mr. Herman Pontzer is doing great research in the area of calorie burn. Dr.. Fung introduced us to this theory in calorie burn in association with weight loss. You can read the article on the "Science" website. The name of the article is "Calorie Counter".
I broke a 5 day black coffee fast today, and I feel great. I knew some of the benefits you mentioned already, but learned a few new things today. As good as I have felt, I could have easily fasted beyond 5 days, but I am concerned about loss of lean muscle mass with an over-long fast. I will look through the Jason Fung video archive for a video about how to know when to break an extended fast.
you could start slow now skip one meal then another etc. it won't feel like dieting then. before you know it you'll be doing 24 or 48 or more hour fast, that's how many people start.
@@JBaker-yu3dr... will definitely start that again. Truly, February then from mid September to mid October are my two hardest months for dieting. Thanks for your helpful and encouraging comment.
Would be interested to hear Dr Fungs views on reduced caloric intake without fasting too. I've noticed in periods of stress my appetite disappears completely, sometimes for weeks on end. During those times I focus on eating mainly meat, fruit, raw veg, nuts and avodos etc, so the nutritional content is high, but there will be the odd day where I barely make 1000 calories. I lose weight fast, sometimes 5lbs a week or more, and it never comes back on super quickly either. I'm guessing I would average 1400-1700 calories a day, sometimes for 4-6 weeks. I never feel tired or run down during these times, apart from the obvious effects of high stress. Other than this, I regularly do IF for 14-20 hours a day, averaging 16, based on around 2200-2500 cals a day for a 50 year old dude at around 185-195lbs.
Has anyone experienced this unforeseen change? I switched from vegetarian to Whole 30 overnight 4 months ago. I have progressed to a clean keto/ IF 6/18 diet. A month ago I noticed what I thought was a blackhead in my mustache which turned out to be black whiskers. Then I noticed a concentration of dark colored whiskers when rinsing my razor. Upon close inspection my head hair, eyebrows and chest hair have changed from gray to a much darker color. I’m 63 years old I’ve lost 33 pounds and gone from 38 inch waist to 34. I have 30 pounds to lose but this new way of eating has me convinced I will get there.
Hi Dr. Fung, I've been following you for a couple of years. I was wondering if you can do a video on chronic inflammation, especially related to arthritis, and/or gout? Does fasting help with these conditions?
He hasn't done one yet, but longer fasts will help with gout especially if you take baking soda while fasting (warning it has sodium so be careful at first).
Hi Dr Fung.I love your videos. Ive been doing Intermittent Fasting for the past 2 months. I now have endless amount of energy, feel like dancing to hardcore music throughout the day, super hyped up during work hours, 1 hour stairs climbing a day + spend 7 to 8 hours on Sat&Sun hiking up 700m+ elevation hills and still feel like going for a run after the hikes. My muscles are not sore either. Is this normal and sustainable? There is just too much energy in me all my colleagues are noticing im constantly in a buzzing-hyped up state. I dont feel hungry at all even after all the exercise, my skin/lips turned pink, and I only get 5 hours sleep before waking up naturally feeling super fresh and dancing again. Dr Fung please kindly advise if this is normal and whether i'd crash at some point if this continues? Thank you so much!
The longer you live... the more money you need 🤔 The more money you have... the longer the system will keep you "alive". If you cant pay the bill.. they pull the plug on your life. Chalange.... how to find the balance. Thank you for sharing 😊
I’m 15 hours in to my first 3 day fast. I usually do 18:6 and Keto but fell off and want to kick start. Water, black coffee & green tea are all I’ll be consuming. I’m not sure whether I should or shouldn’t keep up my gym routine though as there is conflicting advice from different doctors! Anyway, wish me luck 😊
Good luck to you. I’m doing 3-day fasts now, also. This may help: 3 or 4 times a day I drink a juice glass of water with a pinch of salt. Also, the second day is easier than the first. Oh, I eat a meal at noon on Wednesday and then my next meal is noon on Saturday.
Good luck, Samantha. Stick with it. In contrast to another post, I had a rough spot between hours 45-48 of my first 3-day. Everyone is different. Change can be difficult for your body. Be patient with it and calmly carry on. You can do it.
All you guys are a great source of inspiration! I started intermittent fasting last week. And I do look forward to following your formula! All the best to all !
Just to update. I completed my 3 day fast and went to the gym each evening whilst fasting. I literally felt amazing, didn’t get hungry at all but I think that’s because I’m fat adapted from Keto and drank at least 2-3 litres of water each day. I got to day 3 and had to decide whether I wanted to break my fast or continue as I felt like I could go on and felt amazing, however, I decided that I’d break my fast as 3 days is ample for cellular healing. I actually didn’t lose any weight but felt so good and will 100% be doing 3 days fasts once every few months.
@@Samantha-magical MAKE SURE YOU REPLENISH YOUR ELECTROLYTES DURING A PROLONGED FAST. this is VERY important. it can damage your heart if u dont fast properly and that leads to other complications.
Growth is inversely proportional to longevity : the quicker you grow, the lesser you live & vice versa. Love and blessings Dr Fung from kashmir. Love ur golden chain. It simply glitters with life. Always amazing stuff.
Such important information as usual. Quick question: Is there a calorie threshold below which, longevity is promoted by fasting? What’s the calorie cutoff to achieve greater longevity? Thanks 🙏🏻.
Interesting that leaving a car in the garage most of the time and seldom driving it tends to result in the car degrading. Driving it hard wears it out. Regular use but not abuse, with good maintenance, seems to be optimal. Not a perfect analogy of course.
Hi Dr Fung! I was wondering if you could perhaps consider doing a video on IF/ADF with folks who have hypothyroidism? I'm unable to find much info regarding this on the internet and would love to hear your thoughts. Thanks!
It could be salt deficiency. I sometimes get headaches even after one day of fasting if I forget to take salt. So on fasting days I wear a special bracelet to remind myself throughout the day to take in salt.
In the middle of this talk on intermittent fasting UA-cam has inserted two ads; one for muesli and the next for Dominos 😆 I guess their algorithm divined I’d be interested! But no, 2 months on OMAD I have zero interest.
IF has been really successful in lowering my blood sugars and losing weight. But the weight loss has aged my appearance so much. My skin is saggy like a deflated balloon and my face is really wrinkly. It’s sad that my health is growing at the cost of my youthful appearance.
Hi. Try fasting when you are not working to get used to it. You may find that it’s pretty ok to work and water fast because you can drink black coffee or tea ( add a little heavy whipping cream if you don’t like plain), herbal teas, water, salt water for electrolytes, so you can be very comfortable intermittent fasting. Then eat one or two medium to small meal with low carb for good weight loss. Try it. Watch more Dr Fung videos. 🏆🤠😎
No, I don't want to live longer just for the sake of longevity. I want to live as healthy and as well as I can, but having lived a very independent life I would frankly not want to live if I end up as a potted plant in a nursing home or to in any way lose my independence. And no matter how healthy I am, if I've outlived all those I love then living doesn't mean much to me. Like the animals we eat, I want to have a good & healthy life & one day just fall over dead.
The anabolic aspect is interesting. I think there's a catabolic effect around 16-18 hours, but when the fast is over or when it's extended beyond that, it's anabolic (and still in some ways catabolic at the same time-as in autophagy), right? PS: I believe at least one of your books said you burn some lean mass early in the fast, but you gain it back (if you get protein) when you break the fast.
You always have a catabolic period that starts almost immediately after you eat. This is part of the reason many meals is bad, you are constantly switching gears and burning lean tissue more than needed, while if you just did it 1-2 times a day you would come out better.
It sounds good but also caused me a lot of trouble. Fasting casued 1 Mental fog 2 feeling very irritable 3 unable to conentrate on mentally demanding tasks 4 making mistakes while driving etc. I am still trying to figure out how to eliminate or less those side effects. I can only do it while staying at home doing nothing combining it with an active lifestyle may lead to problems.
@@kimmcnichols9650 I agree. And becoming fat adapted and used to fasting takes experience with fasting and time. I'd say perhaps even three weeks for brain fog and irritability to be gone and three months for fasting to become an easier habit. Not always easy peasy, but easy.
It’s funny how the opposite happened to me. I had three big meals because i went camping and the temptation was real. I felt so sick from eating so much, so next day a 24 hour fast felt so good. By the way, sugar makes me dizzy and irritable.
OMAD caused lots of issues I'd never experienced before: Cystic acne, night sweats, mood shifts, and more. And this was after 2 months. I stopped OMAD and began a 16/8 IF and everything has gone back to normal. Apparently OMAD was too much for my sensitive hormonal balance. Perhaps you need to experiment with varying time frames?
Great video doc! Thanks. I have got a question that nobody answered yet. If any of you know please help. Let’s say an average apple has 40 on GI and banana has 60. On my 1st meal I eat one banana. My insulin gos to 60. If I eat apple would it simply adds up to 90 or it stays 60 because apple’s GI is lower than that?
It doesn't really matter. You need periods of not eating to bring it down, and to avoid snacks. The first and last day of the meal is what matter most. If you need to lose weight or improve health you really need 36-96 hour fasts. Everything is in his talks but you don't have to understand it all.
Thx but actually it matters a lot for me. I have two meals a day. First at 11am and second at 3pm. I have also a few snacks such as fruits and nuts between meals. My snacks are smaller then meals but I am wondering if my insulin builds build up before second meal.
Jason, Would you recommend water fasting 5 days (Mon-Fri) and then eating keto Sat & Sunday and then fasting Monday-Friday every week till we reach out goal weight? Then keto every day after we have reached our goal weight?
Dr Jason I have been doing intermittent fasting for the past two years and eating a low carb diet and exercising my whole life and I have a Healthy weight, but recently my ldl cholesterol got high and i would like to know if it has anything to do with fasting?
I think as long as your hdl and triglycerides are low then no problem, I just watched a video where it was mentioned in the comments, but of course do ur own research as well
Just out about fasting in the Journal Immunity Immunity Monocytes renter the bone marrow during fasting and alter the host response to fasting Henrik Janssen Feb 23, 2023 I have RA. My rheumatologist wants to put me on Methotrexate but my neutrophils are a little low, 1.6. My blood tests are taken while I’m fasting in the morning. Could this account for my slightly lower count? My monocytes are fine.
Hello Dr. Fung and community :D Thank you so much for all the videos and tips you have given us in all of your videos. They have really helped me tremendously!! I have 2 more questions I habe been wondering: 1) is it ok to take vitamin and mineral supplements during my fasting period or should I take them during my eating window? 2) And what about brushing teeth? I've read that the artificial sweetener in the toothpaste breaks the fast and triggers an insulin response. Is this true? Because I don't really want to stop brushing my teeth 😅 Keep up the good work and thanks again :)
1. This is assuming you are healthy and were otherwise getting those nutrients before fasting. Part of what makes fasting so powerful is stress adaptation, including the stress of lack of nutrients. However you do still need sodium and potassium, and preferably magnesium too. Everything else you don't need unless you're doing an extremely long fast of like a month or more. 2. You don't need to brush your teeth during fasting, but if your mouth feels dirty then just brush with water. I don't want to get too detailed into the following because there's a lot to talk about and I don't feel like putting in the effort for a youtube comment maybe a dozen people will read: fluoride and thus toothpaste are terrible for your teeth. Stop using it. Instead after eating swish your mouth with water a bit to clean it, then put a small amount (1/8 teaspoon or slightly more) of baking soda in your mouth and swish it around with your saliva, then brush with this baking-soda-infused saliva. Spit it out and rinse. Don't forget to floss before the baking soda!
Hi. Dr Fung has said in other videos that you can have vitamins while intermittent fasting. He has also said that even if you have a small increase in insulin, you body will use up the sugar/carb item and you will go back to low/baseline insulin level that allows cellular and body improvements. Dr Fung says that you don’t need to achieve and maintain ketosis in intermittent fasting to get great benefits. Remember you can get electrolytes from salt water during fasts to help with headaches. Keep intermittent fasting. It’s super good for you. 🤠👍🏼😎
Please let me know whether it is calorie restriction or glycemic load? I think you meant not overindulgence. And this mean eat but do not exceed and stop eating when half full.
It's fasting time Some of the many benefits of fasting and low carb diet on the immune system, blood pressure, blood sugar and anti-aging, all backed up by clinical data: Thymus stem cells are regenerated, which suppresses aging and renews the immune system. Fasting stimulates phagocytosis, the ingestion of bacteria and viruses by the immune system. Blood pressure is quickly and dramatically lowered, which is very important for a good outcome with the current pandemic. Fasting increases nitric oxide, which has manifold postive effects like reducing arterial plaque. Weght loss from fasting only loses10% lean tissue and 90% fat compared to the typical 25% lean tissue and 75% fat lost when calorically restricting for long periods. Blood clotting is reduced and blood clots and arterial plaque are reabsorbed into the body. Vitamin D plasma levels are increased, and vitamin D in turn increases autophagy! Blood sugar and insulin are lowered, allowing white blood cells to move more freely throughout the body and do their job. Ideal blood sugar is around 80. Some viruses activate glycolosis (the release of sugar in the body) and clinically it has been shown that decreasing glucose metabolism in the body weakens the influenza virus. The hormone Leptin is an immunomodulator that keeps the body from attacking itself and obesity causes leptin resistance. Fasting very quickly reduces leptin resistance and leptin levels and one day of fasting can cut your leptin levels in half and gets your immune system working properly again! When you move out of MTOR your body shuts down the building blocks of the cell which are used to produce organelles and proteins. This means the mechanisms needed by viruses to replicate are by and large unavailable when you are in a deeply fasted state. It stimulates the AMPK complex and activates autophagy. Autophagy (literally self eating) will cause cells to recycle foreign matter such as viruses and kill cancerous and senescent cells. AMPK does many helpful things in the body including activating the body's antioxidant defenses. Deep ketosis virtually eliminates chronic inflammation in the body. This can offset the life threatening symptoms of viral pneumonia which effectively kills you through inflammation. This also creates BHB ketones in your body, which also help your immune system and anti-oxidative system, especially in the brain. Ketones also provide an additional energy source during infection, which is critical when trying to fight off a bug. In fact you can have as much as three times the total energy available in your blood when you are in deep ketosis, or even more. It increases mitochondrial function and repairs mitichondrial DNA, leading to improved ATP production and oxygen efficiency and thereby making cells better able to fight off infection. Increased mitochondrial function also has the added benefit of increasing your metabolism and cancer prevention! Your body releases interferon which is also triggered by the body during viral attacks to shut down the replication ability of the surrounding cells and stop infections. After 72 hours or more fasted, your body actually recycles large numbers of immune bodies and creates new ones, rejuvenating your entire system. When you fast, this stimulates apoptosis in senescent or genetically damaged cells. This kills these cells off completely. Senescent cells are responsible for the effects of aging and are the root cause of the development of cancer. If it were possible to destroy them all it would completely stop aging and cancer. That is not possible but fasting can help limit these effects by killing off many of the affected cells and limiting the future effects of aging. Fasting also releases BDNF and NGF in the blood which stimulates new nerve and brain cell growth, helping a great deal with diseases like MS, peripheral neuropathy and Alzheimers. In fact, the biochemical precursor to BDNF is beta-hydroxybutyrate, which is the same ketone the body produces to nourish the brain while fasting. Autophagy induced by fasting even helps hair regrow. Dieters losing weight through intermittent fasting show greater reduction in waist size and increase in insulin sensitivity for the same weight lost and alternate day fasters were shown to lose fat while gaining muscle at the same time over a six month period. Fasting has been shown to increase bone marrow volume by 10% and levels of carnosine in the body in as little as a few weeks. Fasting also increases telomere length, negating some of the effects of aging at a cellular level. Eating one meal a day can bring most of these benefits to a lesser degree, and adding a few entire days off from eating per week will have even more effect especially when starting to feel poorly. Exogenous ketones can aid with fasting, making it easier in healthy people and allowing some people with specific issues to fast in spite of them without worrying as much about hypoglycemia. Children, pregnant or nursing women should not fast for periods longer than 16 hours. People with pancreatic tumors or hypoglycemia generally cannot fast at all. Type 1 diabetics can also fast but it is more complicated and should be approached with caution. Those with Addison's disease may also be unable to fast without liberal use of exogenous ketones, depending on severity. If you experience extreme symptoms of some kind, especially dizziness then simply break the fast and seek advice. Resources: pubmed.ncbi.nlm.nih.gov/6859089/ www.ncbi.nlm.nih.gov/pubmed/23876457 repository.upenn.edu/cgi/viewcontent.cgi?article=1537&context=edissertations www.cell.com/cell/fulltext/S0092-8674(19)30849-9 www.ncbi.nlm.nih.gov/pubmed/25686106 www.ncbi.nlm.nih.gov/pubmed/24905167 www.ncbi.nlm.nih.gov/pubmed/10859646 www.sciencedirect.com/science/article/pii/S0005272806000223 www.ncbi.nlm.nih.gov/pmc/articles/PMC1413655/ www.ncbi.nlm.nih.gov/pmc/articles/PMC2815756/ www.cell.com/cell-metabolism/abstract/S1550-4131(15)00224-7 www.ncbi.nlm.nih.gov/gene/25712 www.ncbi.nlm.nih.gov/pmc/articles/PMC1779438/ www.ncbi.nlm.nih.gov/pubmed/10232622 academic.oup.com/ajcn/article/81/1/69/4607679 www.ncbi.nlm.nih.gov/pmc/articles/PMC3017674/ www.sciencedirect.com/science/article/pii/S1931312809002832 www.ncbi.nlm.nih.gov/pmc/articles/PMC5895342/ www.ncbi.nlm.nih.gov/pmc/articles/PMC6526871/ www.nejm.org/doi/full/10.1056/NEJMc2001176 pubmed.ncbi.nlm.nih.gov/23408502/ pubmed.ncbi.nlm.nih.gov/27569118/ pubmed.ncbi.nlm.nih.gov/21410865/ www.ncbi.nlm.nih.gov/pmc/articles/PMC6407435/ www.arcjournals.org/pdfs/ijrsb/v3-i11/7.pdf www.amjmedsci.org/article/S0002-9629%2815%2900027-0/fulltext pubmed.ncbi.nlm.nih.gov/20921964/ www.ncbi.nlm.nih.gov/pmc/articles/PMC6141719/ faseb.onlinelibrary.wiley.com/doi/abs/10.1096/fasebj.2019.33.1_supplement.819.10 www.biorxiv.org/node/93305.full pubmed.ncbi.nlm.nih.gov/25909219/ clinical.diabetesjournals.org/content/36/3/217 europepmc.org/article/MED/22402737?javascript_support=no onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2265.2005.02288.x www.collective-evolution.com/2017/05/16/study-shows-how-fasting-for-3-days-can-regenerate-your-entire-immune-system/ www.health.harvard.edu/heart-health/abundance-of-fructose-not-good-for-the-liver-heart holistickenko.com/vitamin-d-kidney-liver-disease/ This list compiled over months of research by the user known as Pottenger's Human on youtube but feel free to copy and paste this anywhere you like, no accreditation needed!
Learn more about How to Build a Fasting Routine in this video here - ua-cam.com/video/kIK8ejw6tYw/v-deo.html
Let’s gooooo 26 pounds lighter here. 🔥
That’s amazing!!!
One more benefit of intermittent fasting is that your food bill will go way down.😀
Yes that what I think !
The MAN who changed my life.
Listen to Dr. Fung, if you would like to stay healthy as possible
Absolutely brilliant Dr Fung!! I lost 26 lbs doing 20 hour fasting with one of two meals. I focus on:
1. Eating until I'm satisfied (not stuffed)
2. Focus on nutrients (meats, eggs, seafood)
3. Walk after my meal.
Fasting can also extend your lifespan by 15 years 🤓
little hint....your blood goes to your stoach to digest the food. If you walk or do any execise you are delaying your digestion by taking away the blood from your belly. = )
There's no fiber in meats, eggs & seafood! How do u move your bowels?
@@jgrysiak6566 They move! I’m a carnivore and I was really surprised by it but definitely not a problem😬
@@MaLaNdRaGeM123456 So true! Dr. Eckberg went into this in detail…walk before you eat.
Intermittent fasting is BS! See ua-cam.com/video/pyuyakz6leo/v-deo.html
Just finished a 5 day fast and I feel great !!!
@Shawn Turner no I don't mind
@Shawn Turner I did get light headed but I put pink salt in my water and I felt fine. Day 2 was also the day I felt I had to eat. But I just went for a walk and stayed on my water so that the urge would pass.
@Shawn Turner
Dr Fung and Megan Ramos recommend salt, early and often!
Im 5’1 and weigh 113lbs, so I can only do short fasts. I do two 48 hour fasts a month. A 5 day fast would turn me into a skeleton.
@@mesalouis8976 I only do this twice a year as a total cleanse, but I totally get ya only do what is best for you 😊
Because of you Dr Fung I've lost 4st 5lb it took me 8 months and I'm now learning how to maintain. All my friends are now doing 18:6 fasting and are doing really well. You truly changed my life and have given me back my energy. I used to take my inhaler every day I haven't had to use it once so thank you please keep up your life changing work. Best wishes from 🇬🇧 uk.
Intermittent fasting is BS! See ua-cam.com/video/pyuyakz6leo/v-deo.html
Hello & Good Morning, Dr. Fung. Stay happy, healthy , wealthy & wise to everyone watching. 😊🎀🌸🙏
My husband and I only eat 2 meals a day now with some snacks. We feel much better for it. At 62 & 65 we really don't need 3 meals.
Hi. Try intermittent fasting with low carb for a while to see how you feel. You might like it. 🤠👍🏼
Soon am reaching my body goal because of you doctor
Talking a out inflammation I fell cleaning a house Friday and sprained my wrist ....so I immediately started ice packing my wrist..
It's feeling better ! I also have started stop eating at 3 or 4 in the evening time.
I also do not snack that's a non scale victory.
Following your channel as well as Sten Ekbergs for about four weeks now and it really opened my eyes. Started OMAD with 124kg(and definetely insuline resistent) on January 27th and feed somewhere between Keto and low carb/high fat. Lost 7 kg so far and feel excellent, no hunger and no side effects. Just for fun I measure Blood glucosis three times a day and have perfect levels for the last two weeks, always beetween 80 and 110mg/dl. Last week I had my blood works done, results will be in tomorrow. Really looking forward to it. Thanks so much, you are a live saver!
Probably my two favorites.
He is a sensationalist quack and, to me, can't be compared with Dr. Fung. Look at some of his UA-cam video titles, "Top 10 Foods That Destroy Your Gut," "Top 10 Foods That Should Be Banned," "Get Plastics Out Of Your Body & The Oceans," "Your Doctor Is Wrong About Aging." No scientific ethics or credibility. Do yourself a favor and unsubscribe to Ekberg's channel.
Just started my 1st long term fast, 3 hours ago. Time for my first number on the scale, not be a 2, for the first time in 30 years!
Greetings from florida 🐬i’m starting tomorrow 👍 and I am 70 years old… Never too old never too old 👍
Good Luck to you Sir! Consider videos by Dr. Sten Eckberg and Dr. Ken Berry. Lost 63 pounds in 6 months and all blood markers drastically improved. My personal doctor was in shock.
You got this Fred. I’m 40 and just started ADF again. We can do it!
@@suzeauster2223 I've been fasting for 6 weeks I started off 16.8 for 2 weeks, then 17.7 for 2 weeks and then now to 18.6 for 2 weeks I've lost 6 kg in 6 weeks the lowest weight I've ever been. I'm going to carry on on the 18.6 it really works. you get used to it. I was going to the gym and my weight would not drop off. I now walk daily and I fast . I wish I knew this before so I would not waste my time dieting or going to the gym. xxxxx good luck as this works xx
Babbar Ali Thank You so much 4/ sharing Your journey, it’s an inspiration 4/ all who reads it 👍 Please keep posting Your progress!
Another spectacular talk on a topic of great importance. Thanks Dr Fung, for being so bold as to imagine a healthier human race, and share strategies showing those listening the way.
Thank you 😊👍🏻
Keep kicking ass Dr.Fung! 😎
Thank you
Super cool! Thank you
i listen to him at night until i fall asleep good information
Great video Dr. Fung!!
Thanks for the content.
Great information
Thank you for another excellent video 👍🏻
Thank you!
I just love your videos 💖💖💖💖
Thank you for your content.
Thanks 🙏🏽 Dr Fung
Thank you so much 😊 for the information 😊
Thanks for sharing Dr Fung. You're Awesome. Cheers.
Thank you, Dr. Fung! Another very informative video. Learned a lot.
Thank You
I'm huge Dr. Fung fan thank you
Thanks for this valuable information Dr. Fung.
Great info as always Dr. Fung! ❤️🇨🇦
Circle chart was very helpful.
You are superb Dr ❣️❣️❣️🤗🤗🤗
Thanks, Dr. Fung. I look forward to your Sunday videos for information and inspiration 💫
Always a pleasure watching your videos Dr. Fung! I can't believe how much younger I feel since starting intermittent fasting and losing 150lbs. I feel like 38 instead of 58! I feel so well. Thank you for your books and taking the time to teach us. 😊🙏
Hey Jessica, I love seeing your posts, I am too 58 but starting out slowly adding more and more hours to my fast i have at least 130 to let go
Jessica!!! You lost 150 pounds!!! Super congratulations!! I’m so happy for you!!! I’m new to IF. I lost 10 pounds in this last month. I’m very pleased and intend to keep going. 🏆👍🏼❤️ congrats to you, again!!!
@@JBaker-yu3dr Hi! You can do this! Please read Dr Fung's book The Obesity Code. It changed my life. Be well 😊🙏
@@karenbuchert3377 Thanks so much Karen. It took me a little over a year. I'm loving my new life. Watch Dr. Fung's videos, interviews and lectures. And read his book The Obesity Code. Sooo much valuable information to help you. Good luck and be well 😊🙏
Crikey losing 150lbs! That's pretty much what I weigh. You must have been constantly eating to get to that size. I just cannot comprehend allowing myself to put on sooooo much weight. At some point well before I would have realised something was wrong or looked in a mirror and would have realised that I had to STOP eating or radically changed what I ate and how frequently. But as I say I cannot even comprehend putting on 50lbs of additional weight let alone 150lbs!! Good that you have since realised and have now slimmed down for your own health, quality of life and massively reducing your risk of dying prematurely because of being chronically obese.
I need to listen to your lectures. Repeatedly!
Thank you Dr. Fung for this wonderful
Information. Jana - Texas
Thank you for giving hope for countless diabetic's. Trying fasting from today. Could be a bumpy ride but determined to get there.
God bless u
I always learn from you! Thank you!
Hello lavell
Such a good video thank you Dr Fung. Thank you for breaking down in words we can understand.💕
The section and explanation on hormesis was v. interesting; I would like to hear Dr. Fung speak more in-depth about that in the future. Thank u!
I fast 16-18-20 hours a day. I don’t reduce calories, as I am only 113lbs and too afraid to lose more weight.👀 I do two 48 hour fast a month.
Wonderful
I don't count calories at all. I would never sustain it if I did. It hurts my brain. Love the OMAD
Thank you, Dr. Fung, for always being there for us. May God bless you and your family. 🙏🤩
I am a type two diabetic started fast ing just skipping breakfast my a1c is 5.4 every time for my 6 month check up its was Jason fug who thought me this my doctor said my diabetes is well controlled I also eat a lot of vegetables frozen and raw sometimes salmon I also fast 3 day sometimes 4 days this year I am to make sure I fast 64 days 1 day for every day of my life
Always enjoy videos, probably the best info on this subject. I subscribe to eating less with intermittent fasting and minimum weight training. So less food and less exercise are best. Anything to keep inflammation in check.
Good day Dr.jason nice to hear and learn something every single time,you make some research oriented videos. Good to see you colorful
Intermittent fasting is BS! See ua-cam.com/video/pyuyakz6leo/v-deo.html
Another brilliant well-presented video Dr. Fung. I have followed your recommendations religiously for 2+ years now: down 40 kgs and all health markers highly positive. Focus on IF. Extremely grateful Sir. Thank you.
Intermittent fasting is BS! See ua-cam.com/video/pyuyakz6leo/v-deo.html
@@donwinston ok if you think IF is -- so don’t do it! Peace ✌️
@@anaquintero1815 It is important for misinformation and bullshit be called out so it is not spread around by anti social anti science twits and ignorant people.
super video
Thank You for all you do Dr. Fung. I dropped 111# in 9 months and feel AMAZING!!! 💖
Wow!
Congratulations 👏👏!!
Are u maintaining your weight loss now? Or slowly gaining it back!
@@jgrysiak6566 I gained back 36 pounds and am leveling off. I was 285 and got down to 174, then I went up to 246. I'm currently at 215 and happy. 174 was far too light for my frame and I looked sickly because my skin was so loose and just hanging off me. I looked like a Holocaust survivor. I quit sugar over a year ago and just that in itself makes you feel amazing. I'll NEVER go back to Sugar and will severely limit Gluten in the future.
When I lost the 111# I combined Intermittent Fasting with HARDCORE Keto. When I say "Hardcore" I mean eating as close to ZERO carbs as possible. Sometimes the one meal I had for the day was barely large enough to fill a hand. 3, 4, and 5 day fasts also helped shed the pounds. I went from a size 50 pants down to a 34, and a 3xl shirt to a Med./Large. Best decision I ever made.
IF/Keto is incredibly easy for me because I'm cheating, lol. By that I mean that I have a condition that's SUPER conducive to IF. I have Gastroparesis which means that my digestion works SUPER SLOWLY. A small amount of food is enough to make me feel stuffed. Since I eat one meal a day the transfer to IF/Keto was a piece of cake, all I had to do was change the type of food I ate.
@@Crisper333, gotta get the oil out. It is 4000 calories a pound.
Eat lotsa vegetables, fruits, potatoes, yams, sweet potatoes, whole grains, pasta & beans.
I lost 60 lbs by just ignoring and actively fighting hungers peigns and eating 1 massive meal a day(taking vitamins eating large varied healthy meal). While intense biking at least 20mins a day 5 days a week.
Awesome
As you stated, stopping eating before 80% fullness is not always easy nor automatic. It takes practice and mindfulness. Social pressure can help but is more often a hinderance particularly at social gatherings or when the food is already on one's plate.
Fasting itself for whatever goals can also be difficult due to social pressure. One of the best pieces of advice I've taken from your lectures/books is "CHANGE THE DEFAULT". We must change our environment, habits, and social pressures to make it easier and normal to make better health choices such as fasting, Thank you for educating us on the benefits of fasting and restricted calorie intake which make it paramount for us to:
CHANGE THE DEFAULT
Agreed. Culturally as well it's very hard to avoid when food is associated with generosity and not consuming your extended families food is a sign of bad manners or a lack of gratitude. Unfortunately with family and friends I purposely arrive to events at a later time once festivities have well and truly begun so as to not offend anyone or make it obvious that I won't be eating everything. It does help though when friends/family are supportive and mindful but some of them are also jealous/snarky so you can't win all the time sadly.
Love that! I'm going to use that 😁!
Just focus on yourself, don't worry what other people do!
@@jgrysiak6566 It's not just about what other people do. It's also about changing the default so that the people who love us, our family and friends, will support our fasting as not only healthy but normal. They care about us, so their worry/concern can be very stressful for everyone.
@@AzaleaBee , don't worry about their support, u get all the support from videos & live chats. Spread the good news & start your own group of like minded people!
Cave man would have turned into us too if they had a grocery store on every corner. Thanks for the research and spreading the knowledge of how to live a better life. I'm so boosted on intermittent fasting. Energy for days.
My apologies, thank you for your content 🙂
It is all about the entropy production.
A scientist named Mr. Herman Pontzer is doing great research in the area of calorie burn. Dr.. Fung introduced us to this theory in calorie burn in association with weight loss. You can read the article on the "Science" website. The name of the article is "Calorie Counter".
I broke a 5 day black coffee fast today, and I feel great. I knew some of the benefits you mentioned already, but learned a few new things today. As good as I have felt, I could have easily fasted beyond 5 days, but I am concerned about loss of lean muscle mass with an over-long fast. I will look through the Jason Fung video archive for a video about how to know when to break an extended fast.
About 96 hours is a good place to stop. After that metabolism goes down. There is a video about this.
Hi can I check with u..when u fast 5 days, do u completely refrain from solid food, just drink water or? Thnks
Thanks for the information. February is really my worst diet/eating month. I'm wanting to start intermittent fasting in March 2022.
Don’t delay, best to start today
you could start slow now skip one meal then another etc. it won't feel like dieting then. before you know it you'll be doing 24 or 48 or more hour fast, that's how many people start.
@@whimsicallyrosie... Thanks for your encouragement.
@@JBaker-yu3dr... will definitely start that again. Truly, February then from mid September to mid October are my two hardest months for dieting. Thanks for your helpful and encouraging comment.
Why wait? Start now!
醫生，多謝你的意見，真的幫助到好多人，從病中復原，真誠的謝謝，thanks alot
🥰🥰🥰🥰🥰🥰🥰🥰
Would be interested to hear Dr Fungs views on reduced caloric intake without fasting too. I've noticed in periods of stress my appetite disappears completely, sometimes for weeks on end. During those times I focus on eating mainly meat, fruit, raw veg, nuts and avodos etc, so the nutritional content is high, but there will be the odd day where I barely make 1000 calories. I lose weight fast, sometimes 5lbs a week or more, and it never comes back on super quickly either. I'm guessing I would average 1400-1700 calories a day, sometimes for 4-6 weeks. I never feel tired or run down during these times, apart from the obvious effects of high stress. Other than this, I regularly do IF for 14-20 hours a day, averaging 16, based on around 2200-2500 cals a day for a 50 year old dude at around 185-195lbs.
Hi dr Fung! Do I see a new valentine around your neck? Happy week to you and yours!
Has anyone experienced this unforeseen change? I switched from vegetarian to Whole 30 overnight 4 months ago. I have progressed to a clean keto/ IF 6/18 diet. A month ago I noticed what I thought was a blackhead in my mustache which turned out to be black whiskers. Then I noticed a concentration of dark colored whiskers when rinsing my razor. Upon close inspection my head hair, eyebrows and chest hair have changed from gray to a much darker color. I’m 63 years old I’ve lost 33 pounds and gone from 38 inch waist to 34. I have 30 pounds to lose but this new way of eating has me convinced I will get there.
I have heard of it from others but never seen it
Hi Dr. Fung, I've been following you for a couple of years. I was wondering if you can do a video on chronic inflammation, especially related to arthritis, and/or gout? Does fasting help with these conditions?
He hasn't done one yet, but longer fasts will help with gout especially if you take baking soda while fasting (warning it has sodium so be careful at first).
Hi Dr Fung.I love your videos. Ive been doing Intermittent Fasting for the past 2 months. I now have endless amount of energy, feel like dancing to hardcore music throughout the day, super hyped up during work hours, 1 hour stairs climbing a day + spend 7 to 8 hours on Sat&Sun hiking up 700m+ elevation hills and still feel like going for a run after the hikes. My muscles are not sore either. Is this normal and sustainable? There is just too much energy in me all my colleagues are noticing im constantly in a buzzing-hyped up state. I dont feel hungry at all even after all the exercise, my skin/lips turned pink, and I only get 5 hours sleep before waking up naturally feeling super fresh and dancing again. Dr Fung please kindly advise if this is normal and whether i'd crash at some point if this continues? Thank you so much!
Porfavor traduccion en Español
The longer you live... the more money you need 🤔 The more money you have... the longer the system will keep you "alive". If you cant pay the bill.. they pull the plug on your life. Chalange.... how to find the balance. Thank you for sharing 😊
I’m 15 hours in to my first 3 day fast. I usually do 18:6 and Keto but fell off and want to kick start.
Water, black coffee & green tea are all I’ll be consuming. I’m not sure whether I should or shouldn’t keep up my gym routine though as there is conflicting advice from different doctors!
Anyway, wish me luck 😊
Good luck to you. I’m doing 3-day fasts now, also. This may help: 3 or 4 times a day I drink a juice glass of water with a pinch of salt. Also, the second day is easier than the first. Oh, I eat a meal at noon on Wednesday and then my next meal is noon on Saturday.
Good luck, Samantha. Stick with it. In contrast to another post, I had a rough spot between hours 45-48 of my first 3-day. Everyone is different. Change can be difficult for your body. Be patient with it and calmly carry on. You can do it.
All you guys are a great source of inspiration! I started intermittent fasting last week. And I do look forward to following your formula! All the best to all !
Just to update. I completed my 3 day fast and went to the gym each evening whilst fasting. I literally felt amazing, didn’t get hungry at all but I think that’s because I’m fat adapted from Keto and drank at least 2-3 litres of water each day.
I got to day 3 and had to decide whether I wanted to break my fast or continue as I felt like I could go on and felt amazing, however, I decided that I’d break my fast as 3 days is ample for cellular healing.
I actually didn’t lose any weight but felt so good and will 100% be doing 3 days fasts once every few months.
@@Samantha-magical MAKE SURE YOU REPLENISH YOUR ELECTROLYTES DURING A PROLONGED FAST. this is VERY important. it can damage your heart if u dont fast properly and that leads to other complications.
Growth is inversely proportional to longevity : the quicker you grow, the lesser you live & vice versa. Love and blessings Dr Fung from kashmir.
Love ur golden chain. It simply glitters with life. Always amazing stuff.
Great video. I always learn so much from you.
Such important information as usual. Quick question: Is there a calorie threshold below which, longevity is promoted by fasting? What’s the calorie cutoff to achieve greater longevity? Thanks 🙏🏻.
you need long fasts time matters not calories
Interesting that leaving a car in the garage most of the time and seldom driving it tends to result in the car degrading. Driving it hard wears it out. Regular use but not abuse, with good maintenance, seems to be optimal.
Not a perfect analogy of course.
Hi Dr Fung! I was wondering if you could perhaps consider doing a video on IF/ADF with folks who have hypothyroidism? I'm unable to find much info regarding this on the internet and would love to hear your thoughts. Thanks!
It's autoimmune and can be fixed by fixing your gut and doing some long fasts to fix your immune system so it stops acting wrongly.
Do you have a video regarding maintaining good kidney health?
They all are. Fast and eat low carb. Also some baking soda while fasting will help them too.
Dr I want to know why I have headache on fasting it pain so much not able to.bear
Thanks so much for all you doing to help us
it is likely salt
are you doing caffeine from coffee/tea/energy drinks? Coffee wrecks me with headaches
It could be salt deficiency. I sometimes get headaches even after one day of fasting if I forget to take salt.
So on fasting days I wear a special bracelet to remind myself throughout the day to take in salt.
Dr. Fung could you tell us something about Gilbert's syndrome (hyperbilirubinemia) and fasting
It will help break it down, he has not talked about it specifically
In the middle of this talk on intermittent fasting UA-cam has inserted two ads; one for muesli and the next for Dominos 😆 I guess their algorithm divined I’d be interested! But no, 2 months on OMAD I have zero interest.
IF has been really successful in lowering my blood sugars and losing weight. But the weight loss has aged my appearance so much. My skin is saggy like a deflated balloon and my face is really wrinkly. It’s sad that my health is growing at the cost of my youthful appearance.
Good Morning. What do you do when you work night shift 12 hrs.
IF to decrease hgbA1c. One meal ?
Hi. Try fasting when you are not working to get used to it. You may find that it’s pretty ok to work and water fast because you can drink black coffee or tea ( add a little heavy whipping cream if you don’t like plain), herbal teas, water, salt water for electrolytes, so you can be very comfortable intermittent fasting. Then eat one or two medium to small meal with low carb for good weight loss. Try it. Watch more Dr Fung videos. 🏆🤠😎
No, I don't want to live longer just for the sake of longevity. I want to live as healthy and as well as I can, but having lived a very independent life I would frankly not want to live if I end up as a potted plant in a nursing home or to in any way lose my independence. And no matter how healthy I am, if I've outlived all those I love then living doesn't mean much to me. Like the animals we eat, I want to have a good & healthy life & one day just fall over dead.
Check your VERY low density lipoprotein f its low ur fine, eating low carb increases ldl too since u eat more fats and protein
The anabolic aspect is interesting. I think there's a catabolic effect around 16-18 hours, but when the fast is over or when it's extended beyond that, it's anabolic (and still in some ways catabolic at the same time-as in autophagy), right?
PS: I believe at least one of your books said you burn some lean mass early in the fast, but you gain it back (if you get protein) when you break the fast.
You always have a catabolic period that starts almost immediately after you eat. This is part of the reason many meals is bad, you are constantly switching gears and burning lean tissue more than needed, while if you just did it 1-2 times a day you would come out better.
It sounds good but also caused me a lot of trouble. Fasting casued 1 Mental fog 2 feeling very irritable 3 unable to conentrate on mentally demanding tasks 4 making mistakes while driving etc. I am still trying to figure out how to eliminate or less those side effects. I can only do it while staying at home doing nothing combining it with an active lifestyle may lead to problems.
Sounds like carbohydrate withdrawal … it’s much easier to fast when you are fat adapted !
@@kimmcnichols9650 I agree. And becoming fat adapted and used to fasting takes experience with fasting and time. I'd say perhaps even three weeks for brain fog and irritability to be gone and three months for fasting to become an easier habit. Not always easy peasy, but easy.
It’s funny how the opposite happened to me. I had three big meals because i went camping and the temptation was real. I felt so sick from eating so much, so next day a 24 hour fast felt so good. By the way, sugar makes me dizzy and irritable.
OMAD caused lots of issues I'd never experienced before: Cystic acne, night sweats, mood shifts, and more. And this was after 2 months. I stopped OMAD and began a 16/8 IF and everything has gone back to normal. Apparently OMAD was too much for my sensitive hormonal balance. Perhaps you need to experiment with varying time frames?
It goes away over time. Make sure not to eat carbs when you break the fast
Great video doc! Thanks.
I have got a question that nobody answered yet. If any of you know please help. Let’s say an average apple has 40 on GI and banana has 60. On my 1st meal I eat one banana. My insulin gos to 60. If I eat apple would it simply adds up to 90 or it stays 60 because apple’s GI is lower than that?
It doesn't really matter. You need periods of not eating to bring it down, and to avoid snacks. The first and last day of the meal is what matter most. If you need to lose weight or improve health you really need 36-96 hour fasts. Everything is in his talks but you don't have to understand it all.
Thx but actually it matters a lot for me. I have two meals a day. First at 11am and second at 3pm. I have also a few snacks such as fruits and nuts between meals. My snacks are smaller then meals but I am wondering if my insulin builds build up before second meal.
@@gregoryjanus7680 Fruit spikes my BG significantly! A banana will spike BG even high higher than apple
Fasting is about avoiding snacks, particular nature's candy.
Jason, Would you recommend water fasting 5 days (Mon-Fri) and then eating keto Sat & Sunday and then fasting Monday-Friday every week till we reach out goal weight? Then keto every day after we have reached our goal weight?
sure, some of his patients do
I tried it the other way i jioned the excessive calorie intake it really works the more calories the fatter you get
But... was it actually the calorie restriction, OR the fact that those animals were only fed once per day?? Confounding factor there.
afraid ive gone past point of no return regarding ageing
Dr Jason I have been doing intermittent fasting for the past two years and eating a low carb diet and exercising my whole life and I have a Healthy weight, but recently my ldl cholesterol got high and i would like to know if it has anything to do with fasting?
I think as long as your hdl and triglycerides are low then no problem, I just watched a video where it was mentioned in the comments, but of course do ur own research as well
yes it's normal and nothing to worry about
like the earth if we limit our resource consumption the earth will live longer
I feel like I just eat constantly in my 8 hour feed window.
Just out about fasting in the Journal Immunity
Immunity
Monocytes renter the bone marrow during fasting and alter the host response to fasting
Henrik Janssen
Feb 23, 2023
I have RA. My rheumatologist wants to put me on Methotrexate but my neutrophils are a little low, 1.6. My blood tests are taken while I’m fasting in the morning. Could this account for my slightly lower count? My monocytes are fine.
But you said in your previous videos way before that do not count calories?
Hello Dr. Fung and community :D
Thank you so much for all the videos and tips you have given us in all of your videos. They have really helped me tremendously!!
I have 2 more questions I habe been wondering:
1) is it ok to take vitamin and mineral supplements during my fasting period or should I take them during my eating window?
2) And what about brushing teeth? I've read that the artificial sweetener in the toothpaste breaks the fast and triggers an insulin response. Is this true? Because I don't really want to stop brushing my teeth 😅
Keep up the good work and thanks again :)
1. This is assuming you are healthy and were otherwise getting those nutrients before fasting. Part of what makes fasting so powerful is stress adaptation, including the stress of lack of nutrients. However you do still need sodium and potassium, and preferably magnesium too. Everything else you don't need unless you're doing an extremely long fast of like a month or more.
2. You don't need to brush your teeth during fasting, but if your mouth feels dirty then just brush with water. I don't want to get too detailed into the following because there's a lot to talk about and I don't feel like putting in the effort for a youtube comment maybe a dozen people will read: fluoride and thus toothpaste are terrible for your teeth. Stop using it. Instead after eating swish your mouth with water a bit to clean it, then put a small amount (1/8 teaspoon or slightly more) of baking soda in your mouth and swish it around with your saliva, then brush with this baking-soda-infused saliva. Spit it out and rinse. Don't forget to floss before the baking soda!
If you brush your teeth it won’t be so much that you spike huge amount of insulin. Brush you teeth. 😊
Hi. Dr Fung has said in other videos that you can have vitamins while intermittent fasting. He has also said that even if you have a small increase in insulin, you body will use up the sugar/carb item and you will go back to low/baseline insulin level that allows cellular and body improvements. Dr Fung says that you don’t need to achieve and maintain ketosis in intermittent fasting to get great benefits. Remember you can get electrolytes from salt water during fasts to help with headaches. Keep intermittent fasting. It’s super good for you. 🤠👍🏼😎
Please let me know whether it is calorie restriction or glycemic load? I think you meant not overindulgence. And this mean eat but do not exceed and stop eating when half full.
It's fasting time
Some of the many benefits of fasting and low carb diet on the immune system, blood pressure, blood sugar and anti-aging, all backed up by clinical data:
Thymus stem cells are regenerated, which suppresses aging and renews the immune system.
Fasting stimulates phagocytosis, the ingestion of bacteria and viruses by the immune system.
Blood pressure is quickly and dramatically lowered, which is very important for a good outcome with the current pandemic.
Fasting increases nitric oxide, which has manifold postive effects like reducing arterial plaque.
Weght loss from fasting only loses10% lean tissue and 90% fat compared to the typical 25% lean tissue and 75% fat lost when calorically restricting for long periods.
Blood clotting is reduced and blood clots and arterial plaque are reabsorbed into the body.
Vitamin D plasma levels are increased, and vitamin D in turn increases autophagy!
Blood sugar and insulin are lowered, allowing white blood cells to move more freely throughout the body and do their job. Ideal blood sugar is around 80. Some viruses activate glycolosis (the release of sugar in the body) and clinically it has been shown that decreasing glucose metabolism in the body weakens the influenza virus.
The hormone Leptin is an immunomodulator that keeps the body from attacking itself and obesity causes leptin resistance. Fasting very quickly reduces leptin resistance and leptin levels and one day of fasting can cut your leptin levels in half and gets your immune system working properly again!
When you move out of MTOR your body shuts down the building blocks of the cell which are used to produce organelles and proteins. This means the mechanisms needed by viruses to replicate are by and large unavailable when you are in a deeply fasted state.
It stimulates the AMPK complex and activates autophagy. Autophagy (literally self eating) will cause cells to recycle foreign matter such as viruses and kill cancerous and senescent cells. AMPK does many helpful things in the body including activating the body's antioxidant defenses.
Deep ketosis virtually eliminates chronic inflammation in the body. This can offset the life threatening symptoms of viral pneumonia which effectively kills you through inflammation. This also creates BHB ketones in your body, which also help your immune system and anti-oxidative system, especially in the brain. Ketones also provide an additional energy source during infection, which is critical when trying to fight off a bug. In fact you can have as much as three times the total energy available in your blood when you are in deep ketosis, or even more.
It increases mitochondrial function and repairs mitichondrial DNA, leading to improved ATP production and oxygen efficiency and thereby making cells better able to fight off infection. Increased mitochondrial function also has the added benefit of increasing your metabolism and cancer prevention!
Your body releases interferon which is also triggered by the body during viral attacks to shut down the replication ability of the surrounding cells and stop infections.
After 72 hours or more fasted, your body actually recycles large numbers of immune bodies and creates new ones, rejuvenating your entire system.
When you fast, this stimulates apoptosis in senescent or genetically damaged cells. This kills these cells off completely. Senescent cells are responsible for the effects of aging and are the root cause of the development of cancer. If it were possible to destroy them all it would completely stop aging and cancer. That is not possible but fasting can help limit these effects by killing off many of the affected cells and limiting the future effects of aging.
Fasting also releases BDNF and NGF in the blood which stimulates new nerve and brain cell growth, helping a great deal with diseases like MS, peripheral neuropathy and Alzheimers.
In fact, the biochemical precursor to BDNF is beta-hydroxybutyrate, which is the same ketone the body produces to nourish the brain while fasting.
Autophagy induced by fasting even helps hair regrow.
Dieters losing weight through intermittent fasting show greater reduction in waist size and increase in insulin sensitivity for the same weight lost and alternate day fasters were shown to lose fat while gaining muscle at the same time over a six month period.
Fasting has been shown to increase bone marrow volume by 10% and levels of carnosine in the body in as little as a few weeks.
Fasting also increases telomere length, negating some of the effects of aging at a cellular level.
Eating one meal a day can bring most of these benefits to a lesser degree, and adding a few entire days off from eating per week will have even more effect especially when starting to feel poorly.
Exogenous ketones can aid with fasting, making it easier in healthy people and allowing some people with specific issues to fast in spite of them without worrying as much about hypoglycemia.
Children, pregnant or nursing women should not fast for periods longer than 16 hours. People with pancreatic tumors or hypoglycemia generally cannot fast at all. Type 1 diabetics can also fast but it is more complicated and should be approached with caution. Those with Addison's disease may also be unable to fast without liberal use of exogenous ketones, depending on severity. If you experience extreme symptoms of some kind, especially dizziness then simply break the fast and seek advice.
Resources:
pubmed.ncbi.nlm.nih.gov/6859089/
www.ncbi.nlm.nih.gov/pubmed/23876457
repository.upenn.edu/cgi/viewcontent.cgi?article=1537&context=edissertations
www.cell.com/cell/fulltext/S0092-8674(19)30849-9
www.ncbi.nlm.nih.gov/pubmed/25686106
www.ncbi.nlm.nih.gov/pubmed/24905167
www.ncbi.nlm.nih.gov/pubmed/10859646
www.sciencedirect.com/science/article/pii/S0005272806000223
www.ncbi.nlm.nih.gov/pmc/articles/PMC1413655/
www.ncbi.nlm.nih.gov/pmc/articles/PMC2815756/
www.cell.com/cell-metabolism/abstract/S1550-4131(15)00224-7
www.ncbi.nlm.nih.gov/gene/25712
www.ncbi.nlm.nih.gov/pmc/articles/PMC1779438/
www.ncbi.nlm.nih.gov/pubmed/10232622
academic.oup.com/ajcn/article/81/1/69/4607679
www.ncbi.nlm.nih.gov/pmc/articles/PMC3017674/
www.sciencedirect.com/science/article/pii/S1931312809002832
www.ncbi.nlm.nih.gov/pmc/articles/PMC5895342/
www.ncbi.nlm.nih.gov/pmc/articles/PMC6526871/
www.nejm.org/doi/full/10.1056/NEJMc2001176
pubmed.ncbi.nlm.nih.gov/23408502/
pubmed.ncbi.nlm.nih.gov/27569118/
pubmed.ncbi.nlm.nih.gov/21410865/
www.ncbi.nlm.nih.gov/pmc/articles/PMC6407435/
www.arcjournals.org/pdfs/ijrsb/v3-i11/7.pdf
www.amjmedsci.org/article/S0002-9629%2815%2900027-0/fulltext
pubmed.ncbi.nlm.nih.gov/20921964/
www.ncbi.nlm.nih.gov/pmc/articles/PMC6141719/
faseb.onlinelibrary.wiley.com/doi/abs/10.1096/fasebj.2019.33.1_supplement.819.10
www.biorxiv.org/node/93305.full
pubmed.ncbi.nlm.nih.gov/25909219/
clinical.diabetesjournals.org/content/36/3/217
europepmc.org/article/MED/22402737?javascript_support=no
onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2265.2005.02288.x
www.collective-evolution.com/2017/05/16/study-shows-how-fasting-for-3-days-can-regenerate-your-entire-immune-system/
www.health.harvard.edu/heart-health/abundance-of-fructose-not-good-for-the-liver-heart
holistickenko.com/vitamin-d-kidney-liver-disease/
This list compiled over months of research by the user known as Pottenger's Human on youtube but feel free to copy and paste this anywhere you like, no accreditation needed!
Make this video when u cross 100!