Dr. Jason Fung is an expert on the topic of fasting. 2012. Even if they did, in my opinion, it still does not validate the claims of 2x the results with 50% of the effort. If that is the metric they wish to use, then that means you would be getting 4x the results of an average person who just fasted or dieted without this tea if we standardized for effort (i.e., we assume they made a normal effort instead of half effort). He seems to acknowledge the importance of calorie balance when it suits his narrative but then disregard it when it doesnt. /*# sourceMappingURL=footnotes.min.css.map */ Again, its not that simple. Many traditional societies have eaten carbohydrate-based diets without suffering from rampant obesity. 2:07: Its not true to say if you cut 500 calories down, youll lose a pound of body fat a week., My Response: I somewhat agree with this statement here. Then, I started Victoza and maxed it out. From the archives of strange but true life stories, Im going to tell you about how I have Twitter, fat shaming, and @DrJasonFung to thank, for me having officially received my promotion to Associate Professor last night (thread). I have been looking everywhere for a scientifically-sound recommendation for a daily amount of a HEALTHY dietary fat intake, either in grams or ounces. 2023 The Institute for Functional Medicine. [54][55] Dr. Fung and those who focus on insulin as the primary driver of body fatness over energy balance tend to focus on insulin inhibiting fat oxidation and lipolysis. Layne Norton, PhD on Instagram: MEEESAH DR. JASON FUNG . 23 Jun. Further, he conflates TDEE, BMR, and the thermic effect of food (TEF), which is the amount of energy expended to digest, absorb, and metabolize a food/nutrient, which accounts for approximately 5-10% of your TDEE. With one foot in the grave, Robert turned things around and lost 200 lbs, How to worsen diabetes: follow the worst of the ADA and CDA advice, The difficulties of diagnosing PCOS - PCOS 4, How Dolly turned her obesity and metabolic syndrome around. I think #1 is very likely given his overall confusion between terms and contradicting statements in this short clip. First, why anybody ever thought bell bottoms were cool. Within 5 months, I was at my ideal weight. Diet and Disease - https://youtu.be/2yoOx_7MLn09. How fasting made all the difference for Jennifer, After trying every diet, Karen reaches her goals by trusting the process. When I say misinformation, I mean information that directly contradicts the overwhelming body of evidence and then being packaged and sold as truth. I buckled down and got to a steady weight of 240-250 lbs. Thats where we can help. So lets sum up the first few seconds of this video clip: 1:08: If you eat 500 calories less, your body can simply decide to burn 500 calories less, and you wont lose any body fat., My Response: This is another example of Dr. Fung sprinkling in the slightest amount of truth with a lot of fallacy. Please contact the clinic by calling 647.341.4517 or emailing info . Some may say that these claims are by the company, but the fact is that Dr. Fungs name is right there on the product box. On his website, there is an article titled Calorie Counting Wrecks Your Metabolism. [106] This is like saying keeping a budget will cause you to go broke. He has advocated for intermittent fasting and a ketogenic or low-carbohydrate diet for type 2 diabetes management and weight loss. I feel very stuck. Find Movie. Two years into my marriage, and before any kids, I became polyureic and checked my blood sugar, it was 300+. He owns parts of his medical practice. Biography [ edit] [91][92][93]. Terms, Its Not Calories Its Hormones: A Response to Dr. Jason Fung, https://www.thedoctorstv.com/articles/great-ketogenic-diet-debate, Dr. Jason Fung 28-Day Fasting Tea Challenge Facebook, https://www.redpenreviews.org/reviews/the-obesity-code-unlocking-the-secrets-of-weight-loss/, https://www.myoleanfitness.com/evidence-caloric-restriction/, https://www.healthline.com/health-news/debunking-the-obesity-code-diet, https://twitter.com/avibittmd/status/1240317942794981377, https://twitter.com/avibittmd/status/1241797154693316610, https://www.biolayne.com/media/videos/what-the-fitness/billions-of-people-do-calorie-reduced-diets-only-few-lose-weight/, https://www.vox.com/2016/11/3/13510410/fat-shaming-tweet, https://twitter.com/yonifreedhoff/status/1101140278377877508, https://twitter.com/AlastairMcA30/status/1314090007523594241?s=20, https://pubmed.ncbi.nlm.nih.gov/32060194/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836017/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4090010/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3530364/, https://www.facebook.com/events/httpsbitly2sct8ca/dr-jason-fung-28-day-fasting-tea-challenge/235567304063336/, https://www.piquetea.com/products/ginger-green-fasting-tea, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3408800/, https://pubmed.ncbi.nlm.nih.gov/23235664/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6769678/, https://www.ncbi.nlm.nih.gov/books/NBK231811/, https://pubmed.ncbi.nlm.nih.gov/29433679/, https://pubmed.ncbi.nlm.nih.gov/28627214/, https://pubmed.ncbi.nlm.nih.gov/14594116/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5527236/, https://pubmed.ncbi.nlm.nih.gov/31021710/, https://pubmed.ncbi.nlm.nih.gov/30149423/, https://thefastingmethod.com/the-failure-of-the-calorie-theory-of-obesity/, https://thefastingmethod.com/sugar-obesity-fructose-3/, https://www.youtube.com/watch?v=_nt6KAUvedI, https://medium.com/personal-growth/the-useless-concept-of-calories-50831730cc81, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC524030/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3302369/, https://pubmed.ncbi.nlm.nih.gov/18279014/, https://pubmed.ncbi.nlm.nih.gov/27465032/, https://www.dietdoctor.com/intermittent-fasting/questions-and-answers, https://pubmed.ncbi.nlm.nih.gov/31298652/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4613969/, https://www.youtube.com/watch?v=3d7KkyXnyB4, https://www.dietdoctor.com/the-biochemistry-of-insulin-resistance, https://www.dietdoctor.com/my-single-best-weight-loss-tip, https://thefastingmethod.com/what-is-insulin-resistance, https://pubmed.ncbi.nlm.nih.gov/27931032/, https://pubmed.ncbi.nlm.nih.gov/10355026/, https://pubmed.ncbi.nlm.nih.gov/10365981/, https://pubmed.ncbi.nlm.nih.gov/28193517/, https://pubmed.ncbi.nlm.nih.gov/26278052/, https://pubmed.ncbi.nlm.nih.gov/27385608/, https://pubmed.ncbi.nlm.nih.gov/12908902/, https://pubmed.ncbi.nlm.nih.gov/11029975/, https://pubmed.ncbi.nlm.nih.gov/33567185/, https://drjasonfung.medium.com/controlling-hunger-part-1-627ab2d751fa, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7258127/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3314365/, https://pubmed.ncbi.nlm.nih.gov/29419624/, https://pubmed.ncbi.nlm.nih.gov/16002802/, https://pubmed.ncbi.nlm.nih.gov/24611935/, https://pubmed.ncbi.nlm.nih.gov/22470009/, https://pubmed.ncbi.nlm.nih.gov/15051856/, https://pubmed.ncbi.nlm.nih.gov/19158228/, https://pubmed.ncbi.nlm.nih.gov/16046715/, https://pubmed.ncbi.nlm.nih.gov/12566476/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3629809/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174765/, https://pubmed.ncbi.nlm.nih.gov/27136388/, https://academic.oup.com/ajcn/article/112/3/558/5835207, https://pubmed.ncbi.nlm.nih.gov/33762040/, https://pubmed.ncbi.nlm.nih.gov/26399868/, https://pubmed.ncbi.nlm.nih.gov/32986097/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7231047/, https://pubmed.ncbi.nlm.nih.gov/32844188/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634125/, https://pubmed.ncbi.nlm.nih.gov/16358395/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5568065/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3209643/, https://www.nature.com/articles/ijo2017206, https://pubmed.ncbi.nlm.nih.gov/31204775/, https://pubmed.ncbi.nlm.nih.gov/32386226/, https://thefastingmethod.com/how-calorie-counting-wrecks-your-metabolism/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6747132/, https://pubmed.ncbi.nlm.nih.gov/30888332/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3605747/, https://pubmed.ncbi.nlm.nih.gov/28131005/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3025064/, Dr. Fung believes that your TDEE only has two components: your BMR and exercise (even though he vaguely references TEF), Dr. Fung says that its not the calories that are important, even though he makes a big deal regarding whether your body stores those calories or burns them, Dr. Fung claims that the hormones associated with the foods you eat are more important than their calorie content, Dr. Fung doesnt know the difference between a calorie deficit and calorie tracking (this is likely as many people assume they are the same thing which theyre not) or. And thats the main point. 2020. Insulin levels were increased. Im a 57-year-old internist in Concord, Massachusetts. Total = 225-365. Using his research, he developed the best dietary approaches to help patients. Medications that actually work for type 2 diabetes, Grazing or fasting and why it matters for weight loss, How a thin person with diabetes reversed her type 2 diabetes, How to not get hungry: Fasting and ghrelin, Why type 2 diabetes is a reversible dietary disease. Sign up now! Im not saying that low-carb diets or IF/TRF cause binge eating. It would be a good idea to consult with your doctor as well. Dr Fung And Chronic Kidney Disease. Millions of Americans are believed to suffer from Chronic Kidney Disease. Glad to see Dr. Fung mention that traditional societies were high carb and still not obese. The entero-insular axis and adipose tissue-related factors Nature. 28 Nov. 2006. 2019, Food Label Accuracy of Common Snack Foods NCBI NIH.. [103][104][105] Furthermore, the implication that Dr. Fung is making is that somehow caloric restriction will cause metabolic adaptation. So, the main problem of obesity is not necessarily the calories we eat, but how our bodies use them. Directions. What if there was a more effective treatment alternative for obesity and type 2 diabetes, that is both simple and free? What we eat determines how high insulin spikes, When we eat determines how persistent insulin is. So who is Dr. Jason Fung? Dr. Fung ignoring the calls to defend his claims would not bother me so much if he did not also try to get people fired from their jobs who disagree with him. Dr. Fung's fasting course part 3: Dr. Fung explains the different popular fasting options and makes it easy for you to choose the one that fits you best. Id like practical advice re: intermittent fasting. Just because you cannot track something exactly does NOT mean its completely worthless to try. Are all calories created equally regardless of whether they come from a low-carb, low-fat or a vegan diet? What Dr. Fung promotes, however, is not flexible. At nearly 500 lbs (230 kg) Chuck could barely move at all anymore. Insulin causes weight gain. 2016. Effectiveness of Intermittent Fasting and Time-Restricted Feeding . 14 Oct. 2019. I usually eat eitherOMAD (one meal a day)or TMAD (two meals a day). All I want to know is how to lower my body set weight. 2020. This is not a vegetarian diet. https://youtu.be/QetsIU-3k7Y8. My Response: Once again, Dr. Fung mixes up his terms. In this video, Dr. Jason Fung gives a presentation on diabetes to a room full of medical professionals. Unfortunately, he continues to disperse misinformation to the point where I am no longer content to make short Instagram posts or YouTube videos about his claims. Dr. Fung's fasting course part 4: About the 7 big benefits of fasting intermittently. And in what ways could it be beneficial? The French were loving their bread. I still take Jardiance. That said, I feel its essential to call out misinformation when it occurs because it always harms people, no matter how noble the INTENTIONS are. What are Dr. Fung's areas of care? He is also the scientific editor of the Journal of Insulin Resistance and the managing director of the nonprofit organization Public Health Collaboration (Canada), an international group dedicated to promoting sound nutritional information. [107][108][109]. Since then, his practice has grown to become a standalone clinic called Intensive Dietary Management (IDM) in Toronto. Dr Jason Fung is a Canadian nephrologist. Patients gained weight. Ginger consumption enhances the thermic effect of NCBI NIH. 24 Apr. I started at 212 lbs and after 5 months I have only lost 2 lbs. Intermittent fasting vs. caloric reduction what's the difference? They were eating Oreo cookies. They were not eating quinoa. [17] I could not find the dosing of these ingredients, but there is very little to no evidence to support the claims made by this tea. Check out my blog at https://medium.com/@drjasonfung More Information: BOOKS:. I lost and have kept off nearly 100 lbs. His knowledge has helped change the way many people think about getting healthy. All Rights Reserved. This is not even necessarily a low-carbohydrate diet. I was underweight prior to having children and aging. Yvonne used to see all those pictures of people who'd lost so much weight, but sometimes didn't really believe they were real. How fasting affects your physiology and hormones, Why fasting is more effective than calorie counting. 2020. And in what ways could it be beneficial? It has become obvious that conventional medical treatments are failing patients. Dr. Ken Berry wants us all to be aware that much of what our doctors say may be a lie. Hormones can tell us we are hungry (ghrelin). If you are predominantly fasting, you will lose weight. Further, its impossible to know EXACTLY how many calories you are taking in vs. expending. During fasting, you burn body fat for energy. Dr. Fung specifically recommends green tea, cinnamon chai . If there had not been all of that background, I would not go as hard on Dr. Fung as I have the last few years. Phone Icon. 2021. 2. Insulin is a fat-storing hormone. Dr. Fung graduated from the University of Toronto and completed his residency at the University of California, Los Angeles. . I do not believe in low carb, so it's good to know that he says you can eat any way you want and still lose weight by fasting. [80][81][82] In fact, 240 calories of beef elicited the SAME insulin secretion as 240 calories of bread and 240 calories of fish elicited the same insulin response as 240 calories of rice. Why? I wasnt fully versed. He is also a part-owner at Intensive Dietary Management corporation, which provides education and support for fasting. [18] Now, as with most of Dr. Fungs claims, there are hints of truth. The problem is in the dosage and how extreme the claims are. [41] Dr. Fung and other like-minded people will use this fact to form a strawman argument against the idea of energy balance, aka calories in vs. calories out (CICO), on the basis that it assumes all calories are the same. [7][8] Here is the debate on The Doctors: https://www.thedoctorstv.com/articles/great-ketogenic-diet-debate. Dr. Jason Fung Effective Weight Loss Program Dietary Program The Toronto Metabolic Clinic offers treatment for various conditions through dietary intervention, under the supervision of a dedicated and well-trained medical team, including family physicians, and specialists. I see it being recommended to work with "a professional" in the discussions above. Though my weight loss has decreased I am still losing weight. I don't want to get back there, but it seems to be what is happening. He is a Canadian Nephrologist (Kidney doctor) whose website says he is "a world-leading expert on intermittent fasting and low carb, especially for treating people with Type 2 Diabetes." He originally came into notoriety after writing The Obesity Code and has since written The Diabetes Code and The Cancer Code. I dont take Metformin anymore and have cut my dose of Victoza by a third. Dec 15, 2022. I should point out that its interesting to note that he submarines his argument by pointing out that calories can be stored or burned for energy, given that he previously claimed that the concept of calories is useless. [39] If the concept of calories was useless, why does it matter at all? The Thermic Effect of Food: A Review PubMed. 25 Apr. [59] In fact, this study showed small favoritism for fat loss towards the diets that were lower in fat. As we discussed before, fat balance is the balance between the amount of fat stored vs. the amount of fat burned. This means that there are many factors that cause weight gain Zeenah Z.2021-08-03T10:25:15-04:00Featured, Health and Nutrition, How To Lose Weight|. In your body, nothing happens by accident. Once we understand that hormonal imbalances can affect weight gain, we can begin to treat it. Now lets say this same person DOUBLED their protein in exchange for carbohydrate: Protein 1000 kcal x 0.2-0.3 = 200-300 kcal/d Im not saying it doesnt matter, but its 5% of your daily calorie intake. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Stay updated like 500,000+ subscribers with our weekly Diet Doctor newsletter. Low Carbohydrate versus Isoenergetic Balanced Diets NCBI NIH. 9 Jul. We comply with the HONcode standard for trustworthy health information. Terms & Conditions | Privacy Policy | Billing Terms. I only ate between noon and 7 pm. The common currency in our bodies is not calories - guess what it is? Then came kids, a busy work schedule, and some trips around the world to amazing culinary hubs like Hong Kong and Paris. It is a rigid model of dieting. Our new 10-week program helps you lose weight in a healthy and sustainable way. This is like saying that its useless to keep a budget. I have been looking everywhere for a scientifically-sound recommendation for a daily amount of a HEALTHY dietary fat intake, either in grams or ounces. Dr. Fung says: It really depends on which hormones are associated with the foods you are eating, thats the real key., Dr. Fung has spent many articles and videos nebulously discussing hormones, but rarely will he specifically talk about which hormones he is referencing. This boils down to two simple factors: Most diets concern themselves with only the first question and I believe that is why they fail over the long term. These are automatically regulated, and so is our weight. I am happy about that but they are scheduling out months in advance. As insulin goes up, one possible effect is that the bodys set weight goes up. Diet Doctor Podcast #35 with Ben Bikman, PhD. I cant afford to fast, what do I do? Fat: 500 kcal x 0-0.03 = 0-15 kcal/d [58] Now consider that if we truly want to test whether or not its calories or insulin that are the primary drivers of obesity, we have to compare diets that are equal in calories but differ in insulin response. Please advise. For example, lets say that someone was eating 2000 calories per day and believed that should be a 500 calorie deficit. Furthermore, Dr. Fung implies that this metabolic adaptation is somehow extremely fast so that if you reduce calories, your body compensates for it extremely quickly. Yoni Freedhoff, MD on Twitter: From the archives of strange but true . 28 Feb. 2019. Learn more ↩ Stay updated like 500,000+ subscribers with our weekly Diet Doctor newsletter. Is this a good lifestyle/program/diet to lose weight after kidney transplant? Dr. Jason Fung reveals his top seven reasons why you should consider adding intermittent fasting to your repertoire. His mountains of false, fallacious, and otherwise ridiculous claims have resulted in me attempting to engage him in a debate along with creating various posts and videos to address his claims. [62] On a low fat, high carb diet, fat oxidation is inhibited. They dont stress if they break their fast at 14 hours instead of 16 hours because they understand there isnt anything magical about fasting; they just have to control their overall energy intake. Does anyone know if you can drink Kombucha when following the obesity code? If fasting to control insulin was more important than the caloric content of food, why do none of these literature reviews show differences in fat loss when calories are equated? For the last 6 weeks I have been wearing a cgm and have seen some very interesting data coming from that. The insulin causes obesity hypothesis is easily tested. Dr. Fung's fasting course part 6: Is it really that important to eat breakfast? [75] While intermittent fasting (IF) aka time restricted feeding (TRF) can be a useful tool for fat loss, it does not appear to be superior to normal calorie restriction for fat loss, and similar improvements are also observed for measures of insulin sensitivity like HbA1c, though more research is needed (it should be noted that these results hold true even with protocols such as alternate day fasting). The well . 18 Mar. Instead of frequent meals throughout the day, it may be much more beneficial to include intermittent fasting as a part of your daily routine. It can improve your blood sugars, blood pressure and metabolic health, lowering your risk of heart disease, stroke and cancer. Typically, the return on investment yields quite a bit of hate and nasty comments. [47][48]. My response: There is a lot to unpack here in less than 20 seconds. Dr. Fung is a co-owner in the Diet Doctor company. They were eating white bread and jam. There are many advantages to intermittent fasting as a strategy for weight loss. He knows the difference, and hes simply using fear tactics to push his preferred dietary methods. ', 'How many times should I eat during my eating window?'. Fast forward to two and half years ago when I had a STEMI (heart attack), requiring 4 stents. While we already discussed that all calories are the same because calories are simply a unit of measurement, all sources of calories are not the same, and CICO does not assume they are the same. I fast daily either 16/8 or 18/6. Metabolic changes after licorice consumption: A systematic review . 15 Jan. 2018. Instead, it may be better to use intermittent fasting, a dietary technique used successfully for countless generations. He receives consulting fees from Pique Tea. This is the reason there is the English word break fast or breakfast, the meal that breaks your fast. Im riding a bike again and walking daily. Not only is this not true, but its also a dangerous mindset to instill in people as it can create a black/white mentality. My friend is a weight-loss surgeon and has tried to sell me on gastric bypass. I bought a Fitbit and count calories to ensure I am putting in as much as I am burning. [4][5][6] Other than that, I could not find where he has debated a nutrition expert. He founded The Fasting Method ( TheFastingMethod.com) to provide evidence-based advice for weight loss and managing blood sugars, focusing on low carbohydrate diets and intermittent fasting. | Metabolic adaptation is not observed after 8 weeks PubMed NIH. 1 Oct. 2019. Protein co-ingestion strongly increases postprandial insulin . 10 Mar. Any advice would be greatly appreciated. As we also discussed, metabolic adaptation will mean that even if you start out in a 500 calorie deficit, over time, that deficit will no longer be 500 calories due to reductions in energy expenditure. Not the Jason Fung you were looking for? [69] The notion that insulin would make you hungrier also does not make sense from a mechanistic perspective. Both were equal in calories/protein, and the goal was to examine their effects on fat loss. I'm just looking for a solution that takes me off the dieting rollercoaster. When should you eat if you're working night shifts? If you were comparing 2 diets equal in calories (lets say 1800 kcal/d), but one diet spread the calories out over 4 meals, and the other did it in a single meal, sure you would have more insulin responses in the 4 meal diet; however, each individual insulin response would be smaller whereas the large single meal would likely be a massive insulin response. This doesnt mean that eating in a 500 calorie deficit wont produce weight loss. They were eating tons of white rice. All I can find are conflicting percentages and old-school (but unproven in my case) calorie recommendations. I started buying yourbooksand giving them to family and recommending them to friends. She suffered terrible side effects from the meds so she started a keto diet. [29] It is unlikely that they contain enough of each compound to achieve meaningful results. Why make the argument about storing vs. burning unless he is admitting that the energy content of food does indeed matter? Our Type 1 guide should be helpful for you! The reasons he provides for WHY they are effective are misleading, not supported by evidence, and simply used to drive his narrative. (but I would say I carried it well). Once we are on keto and intermittent fasting we again lose weight but if we add little bit carbs and sweets, we again gain weight.
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