Top 50 Jason Fung Quotes (2024 Update)

1. “OBESITY IS NOT caused by an excess of calories, but instead by a body set weight that is too high because of a hormonal imbalance in the body.”

— Jason Fung

2. “All the conditions we thought were problems – obesity, insulin resistance, and beta cell dysfunction – are actually the body’s solutions to a single root cause – too much sugar.”

— Jason Fung

3. “A recent study suggests that 75 per cent of the weight-loss response in obesity is predicted by insulin levels.29 Not willpower. Not caloric intake. Not peer support or peer pressure. Not exercise. Just insulin.”

— Jason Fung

4. “Metabolic syndrome, of which obesity and type 2 diabetes are a key part, are ultimately caused by – you guessed it – too much sugar.”

— Jason Fung

5. “Fasting, by taking a completely different approach, is much easier to understand. It is so simple that it can be explained in two sentences: Eat nothing. Drink water, tea, coffee, or bone broth. That’s it.”

— Jason Fung

6. “Hunger is a state of mind, not a state of stomach.”

— Jason Fung

7. “IF YOU WANT to avoid weight gain, remove all added sugars from your diet. On.”

— Jason Fung

8. “Obesity is a hormonal disorder of fat regulation. Insulin is the major hormone that drives weight gain, so the rational therapy is to lower insulin levels.”

— Jason Fung

9. “But diet and exercise are not fifty-fifty partners like macaroni and cheese. Diet is Batman and exercise is Robin. Diet does 95 per cent of the work and deserves all the attention; so, logically, it would be sensible to focus on diet. Exercise is still healthy and important – just not equally important. It has many benefits, but weight loss is not among them. Exercise is like brushing your teeth. It is good for you and should be done every day. Just don’t expect to lose weight.”

— Jason Fung

10. “A little starvation can really do more for the average sick man than can the best medicines and the best doctors. – Mark Twain.”

— Jason Fung

11. “A fourteen-day fast delivers seven times the benefit of a two-day fast but is only marginally more difficult. Seven-.”

— Jason Fung

12. “Refined carbohydrates are easy to become addicted to and overeat precisely because there are no natural satiety hormones for refined carbs. The reason, of course, is that refined carbohydrates are not natural foods but are highly processed. Their toxicity lies in that processing. p101.”

— Jason Fung

13. “The price of fasting is zero.”

— Jason Fung

15. “The basics of good nutrition can be summarized in these simple rules. Eat whole, unprocessed foods. Avoid sugar. Avoid refined grains. Eat a diet high in natural fats. Balance feeding with fasting. !”

— Jason Fung

16. “Diet is Batman and exercise is Robin. Diet does 95 percent of the work and deserves all the attention; so, logically, it would be sensible to focus on diet. Exercise is still healthy and important – just not equally important. It has many benefits, but weight loss is not among them.”

— Jason Fung

17. “If you feast, you must fast. That.”

— Jason Fung

18. “Fasting is not so much a treatment for illness but a treatment for wellness. The.”

— Jason Fung

19. “Even the National Cholesterol Education Program admits, “The percentage of total fat in the diet, independent of caloric intake, has not been documented to be related to body weight.”

— Jason Fung

20. “The government is subsidizing, with our own tax dollars, the very foods that are making us obese. Obesity is effectively the result of government policy.”

— Jason Fung

21. “Fasting: Improves mental clarity and concentration Induces weight and body fat loss.”

— Jason Fung

22. “Feast and fast. It has been easy for me to maintain my weight loss and health since.”

— Jason Fung

23. “Let’s face the truth. Low-calorie diets have been tried again and again and again. They fail every single time.”

— Jason Fung

24. “Fasting has no upper limit. In the 1970s, a twenty-seven-year-old Scottish man started fasting at a weight of 456 pounds. Over the next 382 days, he subsisted on only noncaloric fluids, a daily multivitamin, and various.”

— Jason Fung

25. “Once we understand that obesity is a hormonal imbalance, we can begin to treat it. If we believe that excess calories cause obesity, then the treatment is to reduce calories. But this method has been a complete failure. However, if too much insulin causes obesity, then it becomes clear we need to lower insulin levels.”

— Jason Fung

26. “These studies all came to the same startling conclusion: the low-carb diet was significantly better for weight loss than the low-fat diet. Even more stunning was that all the important risk factors for cardiovascular disease – including cholesterol, blood sugar level, and blood pressure – were also much improved on the low-carb diet.”

— Jason Fung

27. “If you reduce your consumption of flour and refined grains, you will substantially improve your weight-loss potential. White.”

— Jason Fung

28. “What would happen if the body continued to expend 3000 calories daily while taking in only 1500? Soon fat stores would be burned, then protein stores would be burned, and then you would die. Nice. The smart course of action for the body is to immediately reduce caloric expenditure to 1500 calories per day to restore balance. Caloric.”

— Jason Fung

29. “Interestingly, I’ve seen the highest success rates with husbands and wives who try fasting together: the mutual support is a big help and makes fasting far easier.”

— Jason Fung

30. “Consider the term breakfast. The word refers to the meal that “breaks your fast” – which is done daily. The word itself implicitly acknowledges that fasting, far from being some sort of cruel and unusual punishment, is performed daily, even if only for a short duration. It is not something strange but a part of everyday life.”

— Jason Fung

31. “Because consistently high insulin levels are the root cause of all the diseases of metabolic syndrome, it’s especially important for those with metabolic syndrome to consider how foods stimulate the release of insulin.”

— Jason Fung

32. “Fasting gets more manageable over time as your body adapts to fueling itself with body fat rather than food.”

— Jason Fung

33. “The root cause of the hyperglycemia in type 2 diabetes is high insulin resistance.”

— Jason Fung

34. “Simplistic arguments that “Carbs make you fat!” or “Calories make you fat!” or “Red meat makes you fat!” or “Sugar makes you fat!” do not fully capture the complexity of human obesity. The.”

— Jason Fung

35. “The key to the proper treatment of type 2 diabetes is to get rid of the excess sugar, not just move it around the body. The problem is both too much glucose and too much insulin.”

— Jason Fung

36. “If the situation is getting worse, then the only logical explanation is that our understanding and treatment of type 2 diabetes is fundamentally flawed.”

— Jason Fung

37. “Coffee, even the decaffeinated version, appears to protect against type 2 diabetes. In a 2009 review, each additional daily cup of coffee lowered the risk of diabetes by 7 percent, even up to six cups per day.23.”

— Jason Fung

38. “Too often, our current model of obesity assumes that there is only one single true cause, and that all others are pretenders to the throne. Endless debates ensue. Too many calories cause obesity. No, too many carbohydrates. No, too much saturated fat. No, too much red meat. No, too much processed foods. No, too much high fat dairy. No, too much wheat. No, too much sugar. No, too much highly palatable foods. No, too much eating out. It goes on and on. They are all partially correct.”

— Jason Fung

39. “In 1960, we ate three meals a day. There wasn’t much obesity. In 2014, we eat six meals a day. There is an obesity epidemic. So, do you really think we should eat six meals day? While.”

— Jason Fung

40. “Try to physically remove yourself from all food stimuli during a fast. Cooking a meal or even just seeing and smelling food while fasting is almost unbearably difficult. This is not simply a matter of weak willpower. Our cephalic phase responses are fully activated, and to feel those responses without actually eating is like trying to stop a piranha feeding frenzy. This, of course, is the same reason you should not shop for food when hungry, or keep snacks in the pantry.”

— Jason Fung

41. “Indeed, some leading scientists, such as Dr. Thomas Seyfried, a professor of biology at Boston College, have proposed a yearly seven-day water-only fast for this very reason.”

— Jason Fung

42. “Fasting induces autophagy – a cellular process that helps the body clear out old or damaged cell parts –.”

— Jason Fung

43. “Throughout most of human history, obesity has been rare. Individuals in traditional societies eating traditional diets seldom became obese, even in times of abundant food. As.”

— Jason Fung

44. “For longer fasts, it is a good idea to take a general multivitamin. The longest fast recorded lasted 382 days, and a simple multivitamin prevented any vitamin deficiencies.”

— Jason Fung

45. “Therefore, the hormonal theory of obesity takes shape: chronically high cortisol raises insulin levels, which in turn leads to obesity.”

— Jason Fung

46. “Instead, we believe that the fault lies in ourselves. We feel we have failed. Some silently criticize us for not adhering to the diet. Others silently think we have no willpower and offer us meaningless platitudes. Sound familiar? The failing isn’t ours. The portion-control caloric-reduction diet is virtually guaranteed to fail. Eating less does not result in lasting weight loss.”

— Jason Fung

47. “Fasting carries significant health benefits. Metabolism increases, energy increases and blood sugars decrease. The only remaining question is this: Can you do it? I hear this one all the time. Absolutely, 100 percent yes. In fact, fasting has been a part of human culture since the dawn of our species.”

— Jason Fung

48. “Illicit drugs like heroin cause a particularly powerful surge of dopamine in the brain. Sugar does exactly the same thing.”

— Jason Fung

49. “When I started fasting, I consciously and deliberately had to think of food as energy and nothing more, divorcing it from the more complicated places it had always stood for in my mind. I also had to tell myself – repeatedly – that I already had plenty of energy stored as fat, and that fasting would help me burn it.”

— Jason Fung

50. “There are an almost infinite number of ways that the body can dissipate excess energy instead of storing it as body fat.”

— Jason Fung