Jason Fung

  • Co-founder and Chairman of the Intensive Dietary Management program
  • Staff physician in the Department of Medicine at Scarborough General Hospital

Credentials

  • MD
  • FRCPC (Fellow of the Royal College of Physicians of Canada)

Education

  • Bachelor of Science – University of Toronto
  • Doctor of Medicine – University of Toronto
  • Fellowship in Nephrology – University of California

Affiliations

  • Scarborough General Hospital
  • Intensive Dietary Management program

Research Focus

  • Nutritional therapy
  • Type 2 diabetes
  • Obesity

Notable Publications

  • The Obesity Code: Unlocking the Secrets of Weight Loss (2016)
  • The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting (2016)
  • The Diabetes Code: Prevent and Reverse Type 2 Diabetes Naturally (2018)

Connect

Key Contributions

  • Dr. Fung is widely recognized for his innovative work on the use of dietary interventions to treat Type 2 diabetes and obesity.
  • His books and lectures have significantly contributed to the popularization of intermittent fasting as a weight-loss strategy.

Contact

https://thefastingmethod.com/contact/

“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 0:00 0
“i used to think you know weight loss is just about willpower it's about calories and calories out the energy balance equation is always true but people always misinterpret it to mean that just eating fewer calories leads to body fat loss it does not”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:00 0
“this idea that you should sort of eat all the time and being healthy is probably one of the most damaging things that we've done to people it's not natural it's not what we used to do it's not it's what we haven't like we haven't done that for most of most of our history it's only been in the last sort of 30 years that people thought well you should eat six to eight times a day most of the time it was sort of two to three times a day maximum”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 2:58 0
“i think it's important to do is sort of put it on the schedule that is even things like eating it should be sort of scheduled it's all the unscheduled snacking and stuff that that really derails people”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 6:07 0
“you know it was strange because we went from a default of not eating you have to decide when you're going to eat to eating all the time and deciding when you're not going to eat which is bizarre.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 6:20 0
“if your baseline is to eat then you gain weight it's unfortunately there's no way around it.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 7:06 0
“probably the biggest one is sort of overeating when you fast like thinking that just because you didn't eat for a period of time that gives you sort of carte blanche to eat whatever you want afterwards.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 8:23 0
“you want to eat still healthy still sort of good nutritious whole foods and combine the fasting it's not sort of like there's sort of like two levers right you want them both going in the right direction you don't want to go one up and one down that's just going to make it ineffective.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 11:53 0
“it's a ridiculous amount of time to be eating and that's the average”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 12:09 0
“your body really exists in one of two states it's either in the fed state which is you're eating insulin is high which is telling your body please store some of these calories that are coming into your body because you're going to need them for when you're not eating or it's in the fasted state which is insulin is low you're not eating and your body says hey i need calories please take them from my storage”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 13:44 0
“when you're eating you're storing calories when you're not eating you're using calories”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 15:15 0
“if you're overweight if you're type 2 diabetic that's actually exactly what you want your body to do”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 17:18 0
“you know my kids when they went to school on a trip for example a bus trip right they'd go on the bus and you get this note from the school which would say please send two snacks with your child and i'd be like why are they not eating lunch or am i not feeding them dinner is that what i think is that oh my goodness and and and then we so we teach them that it's you have to snack all the time and then we blame them for gaining all this weight and then tell them that hey it's your diet it's your lack of willpower”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 18:12 0
“in the 70s people said you know you should eat ultra ultra ultra low fat and in order to do that the government the united states government encouraged people to eat processed food because you could process the fat out of it and put other things mostly carbs because fat and protein tend to go together and so instead of eating say a typical breakfast of eggs and bacon which would keep you full until lunch they'd eat two slices of white bread and jam and some sugary cereal”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 18:52 0
“the problem with that and we know this of course is that insulin spikes up very high glucose spikes are very high because they're all very highly refined carbohydrates then it crashes so by 10 30 you're just starving so then you go get yourself a low-fat muffin and then the same thing happens right your your ins glucose spikes are very high your insulin spikes are very high and and then and then it's gone”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 19:31 0
“then they said well i'm eating six times a day when i used to eat three times a day but since i'm eating super low fat this must be a good thing it never was a good thing of course it was just a byproduct now of course we know we shouldn't be eating a whole pile of refined carbs like right away but back then two slices of white bread and then strawberry jam was perfectly acceptable very low fat almost zero fat in fact all sugar all refined carbs”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 23:03 0
“Jason, one of the central ideas in your work is that chronically elevated insulin is problematic for a variety of different reasons.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 23:40 0
“It actually impacts a huge number of medical conditions... such as heart disease, type 2 diabetes which can cause then kidney disease, nerve problems, amputations, cancers related to insulin levels.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 25:41 0
“The idea that eating all the time of course leads to insulin levels being up all the time and the other problem is that as you move away from fatty foods and stuff then you're choosing foods that typically spike insulin much higher.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 26:01 0
“You choose white bread so even if it's the same number of calories say you choose a white bread versus an egg when you eat that white bread glucose spikes up insulin spikes up when insulin spikes up it says put all those calories into storage.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 28:29 0
“100 calories that don't go straight to fat which is you know the ice cream and the white bread and so on right and that's the point that everybody misses when they're so focused on calories.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 29:17 0
“Food is so much more than calories; food is information, food has an impact on inflammation, it has an impact on genetic expression, it does so much, it signals so many things in the body which we really undervalue when we just say how many calories is in that.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 30:57 0
“The energy balance equation is always true but people always misinterpret it to mean that just eating fewer calories leads to body fat loss; it does not.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 34:28 0
“like you eat bread you eat an egg we can measure the difference in the hormones that you've stimulated right it's not just an airy fairy we know it 100 for sure that there is a difference and yet we have to pretend that those hormonal differences make no doesn't matter right which is ridiculous”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 35:56 0
“there's also the thermogenic effects of foods and the whole context of things it's relatively small but still that's part of that calories out part of the equation”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 37:37 0
“a certain number of calories 100 calories of bread versus 100 calories of egg are going to have different effects on the body they have different hormonal effects”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 40:39 0
“so that comes back to your hormones and then you look at calories out what's exercise let's go one level deeper it's actually mostly basal metabolic rate so you can control what you eat but you can't control how hungry you are you can't decide to be less hungry you can't decide that you're going to burn more calories so it's all down to your hormones it wasn't due to willpower at all”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 41:10 0
“you can take a drug such as cemaglutide which is a weight loss drug now when you completely whack that appetite you know in half people lose weight it never was willpower it was that you controlled the hunger as opposed to the calorie”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 41:49 0
“it's the amount of heat energy that is contained in a certain amount of food it doesn't tell anything about how our body is going to use it a block of wood may have a hundred calories if you eat that block of wood you will get none of it”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 42:57 0
“people are sleep deprived right and therefore their hunger and society hormones are completely off whack”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 43:04 0
“it doesn't account for chronic stress which raises that hormone you mentioned earlier cortisol which again has a huge effect on our hunger and all kinds of things and where we might store that body fat”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 46:23 0
“when you don't eat 46:23 you know your your body is going your 46:25 insulin levels are going to go low your 46:27 body is going to start using calories 46:29 instead of storing calories right so 46:31 it's all about those 46:32 those those hormonal effects that we 46:34 have to understand”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 47:15 0
“there are a lot of doctors who are overweight and i know a lot of doctors most of my friends are doctors right and would i say that they have no willpower absolutely not i've seen these people work 47:15 sort of 36 hours at a time right 47:19 when they put their mind to something 47:21 they will absolutely go out and do it 47:24 nothing will stop them yet these people 47:27 are overweight some of them are obese”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 47:36 0
“i don't think they have no willpower i don't think 47:36 they have a lack of willpower as the 47:40 reason that they are overweight i think 47:42 they're eating the wrong foods because 47:44 they or or they're getting the wrong 47:46 advice to eat constantly”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 52:46 0
“it's one of these embedded assumptions in the calories in calories out model that is that nobody acknowledges which is that calories out can go down your basal metabolic rate can go down when you diet so therefore if you are not losing weight even as you eat fewer calories you could still not lose weight because your metabolic rate is going down along with it.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 54:20 0
“this idea that it was all because they skipped on their diet right that that's not true it might have just been a very poorly constructed diet that is not taking into account just the foods but also the sort of eating duration the fasting the hormones what hormones you're stimulating with the foods that you're eating what information you're giving your body what instructions you're giving by there's so much of that other things that are important.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 56:11 0
“the problem is not generally the carbohydrates but the processing that makes the biggest difference so if you look at the glycemic index which is um you know which looks at carbohydrate containing foods sees how much insulin tends to go up and glucose tends to go up they tend to go up together of certain foods what you see is that unprocessed carbohydrates tend to cause a lot lower spike in insulin than than processed foods.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 58:33 0
“white rice is a refined carbohydrate why do we have societies with high volumes of carbohydrates who are not putting on weights and who are not getting type 2 diabetes and that example use of china that's really interesting 300 grams of white rice a day you would think would spike insulin and would cause people to get sick but it wasn't.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 59:48 0
“sugar which is fructose is metabolized quite differently than glucose so when you metabolize glucose all your cells in the body can use glucose when you metabolize fructose only the liver can use fructose so the fructose goes straight to your liver and there it gets converted and causes fatty liver causes all kinds of things when you're eating too much fructose.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:00:55 0
“so maybe you're saying then in china back then because they're not having much fructose, yeah almost zero but therefore they can actually the bodies can handle the 300 grams of white rice each day whereas on the background if a lot of fructose which which is of course how many of us live these days too much sugar too much fruit juice all these kind of things maybe with a background of that suddenly the white rice starts to become problematic.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:04:19 0
“if you take away the sort of pleasure giving part of food then you're going to be able to control a lot of overweight obesity which is what the right rice was right it was monotonous it was just every single day was the same thing.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:05:01 0
“therefore carbs are good or you have the kempner rice diet from the 40s hey that proves that carbs aren't the enemy it's like no no no it's very complicated like you can't just simplify things into like this food is good and this food is bad.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:06:38 0
“when you take sushi rice for example which is vinegared rice um when you take an acid or lemon juice with bread or vinegar with bread for example you can take say 100 grams of bread and you can measure how much your glycemic index goes up and when you take it with the acid it's like 50 60 of what it was without the acid.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:10:08 0
“the more you're going to leave out in the body for you to use this energy and it's going to keep you fuller longer so that's the food order so basically the whole hack would be just shift your carbohydrate intake to the last part of the meal instead of the first part of the meal and that's going to do two things one it's going to make you less wanting to eat the carbs because you're already full from the fat and protein and two the amount of carbs that you take even if it's the same is going to have less of an effect on you.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:12:47 0
“if you want to eat sort of breakfast at eight nine o'clock in the morning and finish by like six o'clock in the evening and then let the rest of the time be fasting you know you're talking about a eight nine ten hour or eating window it may be 14 to 16 hours and that's relatively easy to do and of course it's something that people have done for for many many years so cutting out the snacks cutting out the late night eating and then you know so if you cut out the eating after dinner and push your breakfast a little bit later then then you're automatically going to get that that period of time and that's a great place to start and then you can experiment you can go longer or shorter depending on what you like.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:15:45 0
“protein is a lot of things there's lots of excess protein on our bodies skin for example is protein connective tissue the thing that binds it all together is protein”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:16:10 0
“what builds muscle and loses muscle is not how much or how little you eat or protein you eat it's the exercise that you do”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:16:51 0
“people who did intermittent fasting we have people lose you know 100 150 pounds they haven't sent anybody for um skin removal surgery because that was protein that was removed not fat”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:17:27 0
“if you look at the amount of protein on the human body in somebody who's overweight it's far in excess they have more protein than somebody who's who weighs less”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:21:16 0
“if you think about the physiology of what happens during fasting there's a lot of good things that happen.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:21:31 0
“if you don't eat there's a very sort of stereotyped response that is insulin is going to go down but certain other hormones are going to go up.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:21:40 0
“sympathetic nervous system and growth hormone so both of those go up as you fast.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:22:43 0
“you're going to have more energy as you fast not less energy.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:25:22 0
“if you're taking a medication in addition to lower your blood glucose you could possibly go too low and yes it could be very very dangerous.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:27:02 0
“if somebody is on insulin for example and their blood glucose goes down so what is the advice that we as a profession give? Well, eat something, right. It's like okay well sure at that one specific time yes I agree but in general if you're going down it means you're over medicated because I'm giving you this insulin to get your sugars low and your sugars are going too low so you're over medicated so you need to reduce the dose.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:27:38 0
“so if you take insulin your sugars go low then you eat what do you think is going to happen you're going to gain weight if you gain weight what happens to your type 2 diabetes it gets worse.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:28:54 0
“type 2 diabetes is largely a dietary disease and we're using drugs to control a dietary disease well you're not going to get as much effect as you think you will because you're not focused on the root cause which is the diet.”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:32:45 0
“you know menopause for example and i think that there is definitely something there like the sex hormones do play a role in how much fat you you gain and lose it's just a fact”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:33:49 0
“it's not a problem with their diets necessarily right so so it's not like you know and this is you know people who say well you know it's all about willpower it's like well then you must think that women have less willpower than men it's like that that's not true like it's not true in any sense so therefore it's sex hormones that play a huge role”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:35:19 0
“there are implications for your gut function often i've found people with ibs type synthesis it really clears up massively when they have periods of fasting”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:36:08 0
“the literature really says that there is not a lot of danger with that so when we're talking eating disorders generally we're talking about anorexia nervosa and bulimia those are the two big sort of eating disorders so they've done studies where they've basically looked at it”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:38:34 0
“if you're talking about intermittent fasting like in you know somebody you know you have a 16 year old girl who weighs like next to nothing with a bmi of 15 no you do not want to be talking about it but you have a 60 year old man with type 2 diabetes who weighs sort of like you know has a body mass index of 45. well then yes absolutely you want to be talking about it”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:39:38 0
“hba1c is a common blood marker that many people get done at their doctors which is a you know an average measurement of our blood sugar over the past two or three months”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:39:55 0
“if it hits a certain point we call that type 2 diabetes if it hits a slightly lower point we call it pre-diabetes”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:44:26 0
“focus on the sort of eating whole foods is still probably the most important thing whether it's a carb or whether it's not”

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“It Only Takes 12 Hours!” – Burn Stubborn Fat, Starve Disease & Stay Young | Dr. Jason Fung
Understanding the Nuances of Diet, Nutrition, and Metabolic Health 1:45:16 0
“don't eat too much sugar, try to eat unprocessed foods, and don't eat all the time”

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