The Obesity Code by Jason Fung

The Obesity Code

Why you’ve never been able to lose weight, and how that can change now Everything you believe about how to lose weight is wrong. Weight gain and obesity are driven by hormones—in everyone—and only by understanding the effects of insulin and insulin resistance can we achieve lasting weight loss.In this highly readable and provocative book, Dr. Jason Fung sets out an original, robust theory of obesity that provides startling insights into pro...

Details The Obesity Code

TitleThe Obesity Code
Release DateMar 4th, 2016
PublisherGreystone Books
GenreHealth, Nonfiction, Science, Nutrition, Food and Drink, Food, Self Help

Reviews The Obesity Code

  • Negin
    This is a fabulous book, probably the best diet/health book that I’ve ever read. I’ve been meaning to read this for a while, but there was a bit of a dread factor. Honestly, I’ve read so many diet and health books through the years, that I needed yet another one like I need a drill through my head. I thought that this would be boring and that I would simply skip to the part where he tells us what to do. I was pleasantly surprised that I did...
  • Laurie Anderson
    Terrible title, great book. The focus is changing your habits to reduce insulin output and insulin resistance in order to eliminate or modulate Type 2 diabetes & metabolic syndrome. Losing weight can play an important role in this. The author (a physician) provides loads of data and studies that refute the "carbs are great, fat is awful & sugar is OKish" message that we've been hearing since the 1970s. He provides evidence that says the healthies...
  • Christy
    The Obesity Code is the 5th book in my non-fiction challenge for 2018. This book was very informative and interesting. It focused on insulin resistance being the trigger for those who struggle with weight loss- more in the long term than short term. It also touched on fasting and intermittent fasting and the pluses of that. Overall, it was an informative read.
  • Cindy Rollins
    I know a lot about dieting having done it for most of my life. I know that calorie counting does lead to yo-yo weight management and yet it is often the only option. Recently, I lost 25 lbs going back to Weight Watchers and now I am in the inevitable plateau with a few pounds creeping back up. This book was long, drawn out, and logical. If it hadn't been I might have rejected the ideas Dr. Fung promoted, especially the idea of intermittent fastin...
  • Stephanie *Very Stable Genius*
    Don’t let the title of this book put you off, it’s not a diet book. I typically don’t read diet books because diets are pointless.... we all know that.More precisely (as pointed out in the book), all diets work at first and then one plateaus and then the weight comes back. On top of that, now you’ve lowered your metabolism because you pissed off your body, because it was perfectly happy at the weight it was, so it increased your hunger an...
  • Chris Bartos
    The best diet book ever!I've read more diet books than I know what to do with here is why this book is the best:1. It explains why calorie restriction doesn't work.2. It explains why over eating doesn't cause you to gain weight.3. It explains in simple terms why we get fat.4. It's a whole lifestyle approach to losing weight.5. It doesn't tell you one diet is better than another, but it tells you exactly why most diets work but for only about 6 mo...
  • Canadian Reader
    Unfortunately saddled with a poor title, The Obesity Code is not shilling some new fad diet or weight-loss program. In fact, this reader friendly, direct, and humorous book addresses the very serious problems with insulin resistance that so many who eat a western diet high in refined grains (and sugar) are plagued with. A trained nephrologist, Jason Fung has extensive knowledge based on years of experience with patients whose kidney failure and o...
  • Angela Boord
    I'm not at all sure how to rate this book. Overall, I think his argument that chronically high insulin levels cause obesity is probably true. But there are some logical gymnastics involved in this book, too. There was a lot of assertion that "calories don't matter" and "calories in/calories out" is wrong. But getting rid of snacks, as Fung suggests, will, for most people, automatically reduce calories. Replacing a piece of white bread and butter ...
  • Andy
    Dr. Fung does a nice job critiquing the nonsense we were all taught for 50 years about calories and cholesterol, etc. Unfortunately, he seems to have hoisted himself on his own petard. He lambastes others for recommending things that are not evidence-based, but then his big advice is to fast, whereas the evidence indicates that fasting doesn't work any better than calorie restriction:'s a shame Fung went...
  • Alice Cai
    5* So this review covers like 2/3 of the book. I'm getting kinda lazy at the end here. I got bored so I skimmed the actual weight loss advice at the end. This book is probably the best non-fiction I've read so far. The first 2/3 of the book is mostly about things you shouldn't do to lose weight / weight loss myths and it's like reading plot twist after plot twist because it's all bad news. If you are actually reading this to lose weight the last ...
  • blake
    I had just finished watching Jason Fung's six part video series, The Etiology of Obesity on YouTube, and it crystallized a lot of what I've learned over the years regarding hormones and weight loss/gain, so I thought I'd pick up the book and see what else he had to say.Well, honestly, most of the stuff he talks about in the book is in the videos (which I sort of figured), so you don't really need the book, though it's nice to have a more convenie...
  • John
    I have struggled for most my adult life to keep my weight at a healthy level. Usually this means going on a major diet for several months every few years. I'm doing that now, and have lost more than 25 pounds. It feels good. But over the past eight weeks or so, even though I've kept to my diet, the weight has stopped coming off. Very discouraging.So Jason Fung's book explains this phenomenon--and much else. He explains how a focus on calories mis...
  • Bobbi
    I've read a number of books about nutrition and although this title covered many of the same topics as Good Calories Bad Calories and The Big Fat Surprise, it was the first to help me understand that when you eat matters. I highly recommend this book to anyone interested in the topic of nutrition.
  • Laura (Kyahgirl)
    4/5; 4 stars; A-This book was written by a Canadian doctor, a nephrologist in fact, who came to the topic by the way of treating patients for issues related to diabetes. I would highly recommend it for a couple of reasons. First, it gives a really good explanation of the all the hormones that impact blood sugar, hunger, saiety, metabolism, etc. And second it discusses aspects of nutrition that have been used to mislead consumers. Basically, food ...
  • Mara
    Probably the book I would now recommend as the place to start if you're interested in eliminating sugar & processed foods from your diet and making it stick... I think you really do need to understand the WHY of sugar elimination, not just the what, or else it doesn't last. He does a very nice job of breaking down why the calories in/calories out model doesn't sufficiently explain the underlying causes of obesity. I also appreciate that he sticks...
  • Cindi Seal
    Dr. Fung does a great job convincing that insulin and insulin resistance cause weight gain (as opposed to the overly simplistic and flawed calorie deficit model); however I was disappointed when reaching the end of the book. I understand no one book or person will have the answer/cure for obesity, but reading the recommendations for fasting, only to find that weight loss differs from person to person using this method and that there are plateaus ...
  • Nikhil P. Freeman
    Worked for me. Lost 18 pounds of fat in thirty days with a low-carb, high fat, moderate protein diet in conjunction with intermittent fasting.
  • Jeanmarie Giambra
    Best Book Ever to Overcome Obesity with calorie counting & weighing food & excessive exercise.The best weight loss book that cuts through all the mixed messages and myths we are taught. I wanted a scientific examination of how the body operates and I already assumed hormones play a huge role in obesity. This book has confirmed my suspicions. I am not wasting my time and money for another false hope and many more contradicting messages that are wr...
  • howl of minerva
    Horrible title but excellent content. Fung is Canadian nephrologist who got tired of seeing his patients tread the well-worn path from obesity to type-2 diabetes to end stage renal failure to death. He decided to devote himself to studying and treating the metabolic syndrome. The findings are clear and Fung refers to all the relevant studies in major peer-reviewed journals. Essentially, 50+ years of studies show convincingly that eat less-move mo...
  • Mike Warner
    My ego only took on marginal damage when my physician recommended a book to me with the word Obesity front and center. In fact I was quite ready to take on a more strategic effort towards more healthy living. Even the suggestion of intermittent fasting, the central and lone thesis of this book, struck an affirmative chord. I'm down with a spiritual practice which transcends religious affiliation and the fleetingness of fads and which may connect ...
  • Elena
    Nothing in this book was new for those, who, like me, are following books/blogs on healthy eating and practicing that eating itself. I met several typos throughout the book and was not impressed with the coherence and thoroughness of presented framework. The biggest flow is the absence of advice for the target audience on how to tame the appetite at the beginning, "how to brace yourself for impact", so to speak. I personally know the answer - gat...
  • Andreas Schwartmann
    German first, english afterwards:Das Buch hat mir gut gefallen, allerdings habe ich einige Kritikpunkte anzumerken:1) Dr. Fung wiederholt m.E. zu oft, dass nicht Kalorien dick machen, sondern Insulin. Das ist dann irgendwann ermüdend. 2) Er behauptet, dass man mit Bewegung nicht (oder nur kaum) Gewicht verlieren kann, weil damit kaum Kalorien verbrannt werden. Ja, was denn nun? Auf die Kalorien kommt es doch gar nicht an. Und regelmäßige Beweg...
  • Lee
    The most enjoyable and understandable book on nutrition and weight management I've ever read. I was so excited to read this, I had many Aha! moments. Dr. Fung gives a clearly written overview, (especially for the lay person) of how weight gain and loss is regulated by hormones. He does a wonderful job of debunking many of the diet fads that have been prevalent over the last century and how we got to where we are today. Highly recommended, especia...
  • Dara
    I thought Dr. Jason Fung does an amazing job at explaining complex topics involved in diabetes, obesity, and insulin resistance. He's so thorough and easy to understand that you can't help but learn. And he's actually pretty funny to boot!I have never heard such great explanations or had better understanding of why we gain weight and why diets never work. He gives long term solutions that I've never heard explained this way before, yet make perfe...
  • María Paz Greene F
    Al fin una explicación clara, documentada, concisa, y además bastante divertida (tiene gracia para escribir, el hombre) sobre el tema de la alimentación y del sobrepeso.Pésimo título, pero excelente libro. SOY TU FAN, DOCTOR FUNG <3
  • Kim
    If you've spent a considerable amount of your life not being at a weight with which you're comfortable, Jason Fung has good and bad news. The bad news is that counting calories doesn't work. Neither do diet plans. Neither do diet and exercise. Fung maintains that no single idea will help a person reach their dream weight. He claims that far too many studies done on dieting only last a few weeks, others mistake correlation for cause, and several ...
  • Aneliya Petrunova
    (Прочетете по-долу на български)Jason Fung's book "The Obesity Code" is a valuable addition to the library of anyone who is interested in healthy eating, obesity and weight loss. The author is a doctor (nephrologist) who has dedicated himself to fighting obesity and diabetes. He bases his book exclusively on studies done on humans (since humans are not rats and results from rat studies are not directly applicable to huma...
  • Online Eccentric Librarian
    More reviews (and no fluff) on the blog The Obesity Code is a relatively brief and friendly discussion about the role of insulin control and how it affects weight. This isn't a diet book so much as a discussion on a more modern way to look at everything from fat to processed foods - and especially insulin control.At its heart, it breaks down into five basic steps for weight loss: 1) reduce consumption of added s...
  • AngryGreyCat
    I have a personal interest in this topic as I am in the process of losing weight myself and I have a maternal family history of diabetes that I am strongly fighting against developing. I will also say that I take most “diet” book with a grain of salt in that they tend to pick and choose their “scientific” research. Their “data” tends to be skimpy or non-existent.I am really impressed with the extent of his research. I would say the la...
  • Ahmed Hegazy
    A must read for anyone struggling with weight management. It provides a completely new framework to address and tackle the problem. The nice thing is that everything in this book is backed by scientific studies on humans and empirical results. I loved it!