The Obesity Code – Unlocking the Secrets of Weight Loss (Book 1) (The Code Series, 1)
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FROM NEW YORK TIMES BESTSELLING AUTHOR DR. JASON FUNG: The landmark book that is helping thousands of people lose weight for good.
Harness the power of intermittent fasting for lasting weight loss.
Understand the science of weight gain and insulin resistance.
Stop suffering and ditch calorie counting, yoyo diets, and excessive exercise.
In this highly readable book, Dr. Jason Fung, long considered the founder of intermittent fasting, sets out an original theory of obesity and weight gain. He reveals that everything you’ve been told about how to lose weight is wrong: weight gain is driven by hormones, and only by understanding the effects of insulin and insulin resistance can we achieve lasting weight loss.
Dr. Fung shares five basic steps to controlling your insulin for better health. And he explains how to use intermittent fasting to break the cycle of insulin resistance and reach a healthy weight—permanently.
From the Publisher
Publisher : Greystone Books; 1st edition (March 1, 2016)
Language : English
Paperback : 296 pages
ISBN-10 : 1771641258
ISBN-13 : 978-1771641258
Item Weight : 2.31 pounds
Dimensions : 5.9 x 1.2 x 8.9 inches
Customers say
Customers find the book very informative and excellent. They also describe it as easy to read, compelling, and worth reading. Readers mention that the book helps them lose weight and control their weight. They say it works better than insulin and is extremely effective. Readers appreciate the logic behind fasting and the doable intermittent fasting program. Overall, they feel good and are in less pain.
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7 reviews for The Obesity Code – Unlocking the Secrets of Weight Loss (Book 1) (The Code Series, 1)
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Original price was: $19.95.$10.61Current price is: $10.61.
L Parr –
Decades in medicine…why didn’t anyone teach us about THIS!!!
I am a PA with decades of experience with diabetes and it’s ill effects. I have watched through my career, type 2 diabetics listen to medical advice and never get any better. When my daughter, who was a gestational diabetic with her first pregnancy had a fasting blood glucose of 288 mg/dl, it became personal for me. They gave her the usual Metformin script and sent her on her way. Knowing that these meds do nothing to cure the disease and that it would only head her to a life on insulin and further weight gain I asked her not to take the meds, stop all carbs for the moment and let me do some research. That was when I came across Dr. Fung’s lectures on the internet. As someone who has been studying holistic medicine for 30 years it made complete sense to me.What makes this book and his lectures so valuable, is that he approaches everything from a medical model and shows why modern medicine is getting it all wrong.He explains the process of glucose metabolism in a way I feel most lay people can understand. It’s important for every overweight or type 2 diabetic to understand this process to better understand what they have been doing to their bodies…and unfortunately what we in medicine have been doing to their bodies.What was most valuable to me was him quoting studies that are considered standards in the field of medicine…not studies on rats or studies that have 15 subjects…but studies conducted over years with thousands of participants…like the Frammingham study or the NHANES study. I had seen these studies in the most prestigious medical journals like JAMA…funny how some of the aspects of the studies that he cites just weren’t included or stressed in the outcomes.After going over all the metabolism…the studies on why reducing calories and increasing exercise just doesn’t work…he presents a series of plans to reverse (yes I said reverse) type 2 diabetes. There are several options and one is bound to be workable for most people.My daughter has a hectic schedule and always complained about diets that required 3 or more meals a day…she doesn’t like to eat breakfast and has no time to schedule multiple meals. The four hour intermittent fasting plan worked great for her. After an initial adjustment of about 2 days (headaches which were not relieved by increasing her sodium, my guess was sugar withdrawl), she had no hunger, no cravings and felt great. Within a week her blood sugar was normal. She started this right before the holidays and was concerned about missing holiday dinners…my answer was that of Dr. Fung’s: have your dinner, enjoy it and get back on track the next day. She did just that and got through the holidays effortless and satisfied that she wasn’t deprived of a thing. She remained on her fasting protocol and just had her meal within that time frame. Her blood glucose was higher the next morning but normalized after one day. She chooses now to have one “cheat meal” each week and for 4 weeks the next morning her blood sugar was higher…but got lower each week and after 4 weeks her morning after a cheat meal her blood glucose was normal!Within 10 weeks she has lost 46 pounds and is thrilled with her progress. Her doctor is shocked and initially thought the diet was nuts but now wants to know more about it…hence why I ordered 3 copies of this book…perfect for the medical mind.This diet is basically a ketogenic diet on steroids…great for so many ailments and used by many cancer patients.I started on the diet myself and found similar results with the exception of my cheat day…maybe because of my age, I do not get into ketoses for days after my cheat day which slows down my weight loss. I have still managed to lose 16 pounds in 3 weeks effortlessly with the exception of the 2 day sugar hangover like my daughter experienced. I have since found a product that will put you into ketoses in a day, but it is very expensive and the taste is…not so great. I use it once a week and it allows me to have that cheat meal once a week without sacrificing my progress.My guess it that Dr. Fung will become villified for several reasons:1. His plan works without medicine2. The drug companies will lose a tremendous amount of money3. No special foods or supplements to buy4. No added expenses…in fact my food bills are much lower.5. He exposes the fact that this information has been available to the medical community for a long time and no one has acted on it.I highly recommend this book and highly recommend you read through all the facts and figures he goes over…it makes managing your weight and your diabetes much easier over your lifetime without much thought once you know how your body reacts to food.I also recommend getting an extra copy for your doctor because they will surely think you are nuts when you tell them what you are doing.I will be eternally grateful to Dr. Fung for giving me the tools to cure my daughter and better serve my patients.UPDATE: My daughter continues to do well with blood sugars that remain normal, her biggest complaint is that she has to keep buying new clothes. She has found her weight has stalled and after some investigation I realized why…she had been taking MCT oil, about 3 tablespoons a day in pill form (she doesn’t eat breakfast and doesn’t like the taste of coconut) and she stopped it at the same time her weight loss halted. MCT oil…and there are several like coconut and hazelnut, stay liquid at room temperature. They can be added to food like coffee or smoothies, even salads. I found that I can get back into ketosis at warp speed when I started using it. Amazon has several brands here and I like the 32 ounce Viva labs coconut MCT. I found that although the craving weren’t horrible, I missed my sweets. There is a new book from Martina Slajervoa called “Fat Bombs” that I highly recommend. Tons of sweet treats that are keto friendly. I will say I hate stevia and it’s aftertaste, but found Swerve to be a great substitute. I will also warn you that if you don’t use MCT oil in many of the recipes and sub coconut oil in it’s more solid form, the results are not nearly as good. The chocolate hazelnut smoothie does it for me…sometimes I sub ice for all the water and I get a soft serve like ice cream that tastes like I’m cheating. The MCT oil helps me get right back into ketosis after my cheat days without buying that expensive, horrible tasting powered drink I was using. She also has a book on ketogenic recipes in general that I found very helpful as she has many dinner recipes that can be prepared in 30 minutes or less. I have taken my blood sugar both before and an hour after eating these “Fat Bomb” treats, (I’m not diabetic) and my blood sugar stayed the same or went lower…that was using the Swerve, which is expensive but worth it and a bit cheaper if bought in the 3 pack as I do.
M. JEFFREY MCMAHON –
Keep Your Insulin Down and Learn Why “Being Fat Makes You Fat”
I’ve known about low-carb diets since I was a kid in the 70s and my parents went on the low-carb “Atkins Diet,” but I’ve avoided them because I love carbs (who doesn’t?), but earnest to lose 40 pounds at the age of 56, I started to investigate the role of insulin in weight gain and Dr. Jason Fung’s The Obesity Code proved to do an excellent job of driving home several important points between the role of carbs, insulin, and weight loss.For one, Fung gives us a narrative to show that doctors were making the claim that too many carbs led to obesity as early as the 19th Century, but these claims were eclipsed by the non-scientific Eat Low Fat, Watch Your Calories Diet, which Fung shows does not work. No amount of willpower can fulfill the expectations of a low-fat, low-calorie diet because carbohydrates high on the Glycemic Index stimulate insulin and high insulin results in two horrible things: fat storage and constant hunger.Fung makes it very clear that lowering one’s insulin mostly by eliminating all processed sugar and carbs and eating in their place whole foods one can control one’s appetite, which goes off the tracks when one eats breads, waffles, pancakes, pasta, etc. This research is also supported by Dr. Robert Lustig, author of Fat Chance.The book does not offer extensive prescriptions for daily amount of carbs or detailed menu plans, so I read some other books on achieving a state of ketosis for weight loss, and what I find is that the prescribed carbs per day tends to differ. For strict “orthodox” ketogenic, low-carb champions, such as Amy Ramos, author of The Complete Ketogenic Diet for Beginners, the amount is usually a mere 20-50 for the “first phase” followed by a maintenance level between 75-100 grams. However, some authors, such as Michael Matthews, author of Bigger, Leaner, and Stronger, say one can eat as many as 150 “good” carbs a day, or even more for some. By good carbs, I am referring to carbs from whole foods, not processed flour and sugar. Some authors, such as Amy Ramos, will say you can’t eat quinoa, sweet potatoes, beans, or legumes of any kind, but other authors, such as Michael Matthews, are less dogmatic on this point.From reading The Obesity Code, I would suggest one experiment to find the right carb threshold and correct mix of ingredients since Dr. Fung, Dr. Lustig, and others seem to differ on this point.Additionally, I’d say one should experiment with the sweet potatoes, quinoa, beans, and legumes. If one isn’t making weight loss goals with these ingredients, then take them off one by one.One point that Fung makes that is in contradiction with a lot of nutritional advice I’ve heard over the decades is that snacking is usually a bad thing because we are constantly stimulating our insulin. Fung observes that the low-carb craze of 2004 sank, not because low-carb diets don’t work, but because the snack industry got involved and created all sorts of low-carb snacks, including chips, protein bars, and other snack foods, and this constant snacking kept people’s insulin at a high level and brought in too many calories.Fung seriously examines the benefits of long durations between meals and encourages eating only 3 meals a day, and even fasting every now and then. However, he is not dogmatic. He points out that if one must snack, one must be careful to focus on whole foods and not processed “snack foods.”By focusing on the role of insulin and showing that “being fat makes you fat” because a fat person is in a constant state of high insulin and high appetite state, Fung has made me very mindful of the carbs I put into my body. Highly recommended.Update:I’ve been following The Obesity Code, eliminating sugar, gluten, potatoes, and rice, for the last 6 months, and I have lost 50 pounds. My neuropathy burning pain in my left foot is 100% gone. I’m a believer in this book, and I will be adhering to it for life.
Reto Ehrler –
So many informations underlied with studies. Should be read by al doctors and nutrition coaches! To really see the truth about losing fat and stay with a healthy nutrition. Best book ever for that topic!
mefff –
Finally the facts on how your body works. It all makes complete sense and requires no cost in any way to achieve your desired results. In 7 days my blood pressure is 121/73 and have now dropped 2 meds at 65 yrs old. No more drowsiness and so much energy. All the fat is literally melting into the sunset. When you know the truth that your body will not utilize muscle for energy until you are around 4% body fat…. you no longer equate a hunger pain with possible muscle loss. Instead you think this isn’t really a hunger pain, it’s just my 30, 40, 50 pounds of stored glucose in the form of fat is now being utilized for energy. Exactly what I want. How could it actually be a hunger pain carrying all that excess energy around….? Kinda funny. Just a shift in thinking more aligned with the truth about your body’s design and function. Truly freeing information. I am so happy and becoming more liberated everyday from the self imposed prison of excess weight. All from not knowing how it all worked and now following a easy method of weight loss. This book should be mandatory reading in grade 9. I started at p.155 section 5. What’s wrong with our diet?
kostas –
I wish I had read it earlier in my life. I lost 21kg from April 2024 to August 2024. Insulin level dropped to 5. H1ac to 5,5 and blood sugar to 98. They are still improving. I feel amazing.The world needs scientists and doctors like Dr. Fung. I read all his books. I can not recommend it more.
Balaji –
This is the appropriate book for people who want to know about diet and slimming!
Client d’Amazon –
Great book. It can change your life.