---
product_id: 48646936
title: "The Obesity Code: the bestselling guide to unlocking the secrets of weight loss: 1"
price: "334 kr"
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reviews_count: 13
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---

# Intermittent fasting method Hormonal weight loss science Bestselling health guide The Obesity Code: the bestselling guide to unlocking the secrets of weight loss: 1

**Price:** 334 kr
**Availability:** ✅ In Stock

## Summary

> 🔥 Crack the code to lasting weight loss with science, not willpower!

## Quick Answers

- **What is this?** The Obesity Code: the bestselling guide to unlocking the secrets of weight loss: 1
- **How much does it cost?** 334 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/48646936-the-obesity-code-the-bestselling-guide-to-unlocking-the-secrets)

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## Why This Product

- Free international shipping included
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## Key Features

- • **Unlock the Hormonal Code:** Discover why insulin—not calories—is the real culprit behind obesity.
- • **Sustainable Weight Control:** Adopt lifelong habits that keep weight off without starvation or fad diets.
- • **Master Intermittent Fasting:** Learn how timing your meals resets metabolism and crushes insulin resistance.
- • **Science-Backed & Easy to Follow:** Groundbreaking research presented in a clear, practical guide for busy professionals.
- • **Join a Movement of 36,000+ Readers:** Be part of a community transforming health with proven, hormone-focused strategies.

## Overview

The Obesity Code by Dr. Jason Fung revolutionizes weight loss by revealing that obesity is driven by hormonal imbalances—specifically insulin resistance—rather than calorie counting. This bestselling guide combines cutting-edge science with practical intermittent fasting strategies and lifelong eating habits to help readers sustainably reset their metabolism and achieve lasting health improvements.

## Description

We are in the midst of an obesity epidemic, but despite being inundated with diet advice we are only getting fatter. We count calories and exercise regularly, yet still the pounds won’t budge. Why? In this highly readable and provocative book, Dr Jason Fung sets out a groundbreaking new theory: that obesity is caused by our hormones, rather than a lack of self-control. He reveals that overproduction of insulin in the body is the root cause of obesity and obesity-related illnesses including type 2 diabetes, and offers robust scientific evidence that reversing insulin resistance is the only way to lose weight in the long term. It turns out that when we eat is just as important as what we eat, so in addition to his five basic steps ― a set of life-long eating habits that will improve your health and control your insulin levels ― Dr Fung explains how to use intermittent fasting to break the cycle of insulin resistance and reach a healthy weight ― for good.

Review: This book led me to permanently change my eating pattern - I'm writing this review 18 months after reading the book because after this time I can conclude that it's been life-changing. On the book itself, I'd say it was a fascinating and compelling read. Fung clearly explains quite complicated physiological mechanisms and provides evidence that I found very convincing (with one exception). 18 months on, the bits that have stuck are not the complicated issues but simply: 1 My body, and especially my liver, needs a regular rest from eating and from the constant blood insulin levels that frequent eating produces. 2 I'm probably stuck with whatever level of insulin resistance (and consequent stored fat) that developed through my adult life (I'm over 60) but I can help prevent further damage. 3 I shouldn't feel hungry when I fast intermittently (This was the life changer for me because I found it's true!). 4 Try to avoid discussing your intermittent diet regime with family and friends. They will simply go on and on with the usual uniformed diet rubbish that I used to believe myself. The one exception in terms of evidence, was the value of cider vinegar. I wasn't convinced by Fung's evidence, so I haven't tried it. So, how has the book changed my life? I haven't lost much weight but nor have I really tried to. I have lost about 6 pounds over 18 months but importantly this is against a history of putting on a pound or 2 every year. What I have done is put 'breakfast' back to 7pm or later every day. I only consume water or black coffee/tea up to that time. And the magic part is that I don't feel hungry even when sitting with others who are eating scrumptious meals. So, it doesn't require any willpower! If it did, I couldn't have sustained it. I still feel amazed and empowered every day when I realise that I haven't eaten for 19-21 hours and I don't feel hungry. As Fung points out its easy and its free! In May this this year my diet was put to a pretty tough test. I cycled the North Coast 500 over 9 days. This is a challenging and hilly route, averaging about 57 miles/day. I didn't expect to stick to my fasting regime but over 15,00 miles of training in 11 weeks before the trip (60-85 mile days) I discovered that it was not a problem! I added calorie-free electrolyte replacement to my water bottles and never experienced dips in energy due to low blood sugar. With that now behind me I am as confident as I can be that I won't need or want to change my eating pattern in future. This book gave me a basis for trying something that flew in the face of a received wisdom that had me trapped in a cycle of eating and craving, which seems to be the common experience of almost everyone I know. I would strongly recommend it as a serious contribution to better understanding of the effects of diet on insulin release and the effects of excessive insulin release on long-term health.
Review: Finally something that works and is easy to implement (no need to be obese to love this book) - After decades of failed yo-yo diets, calorie counting, exercising, being hangry, you name it... finally I have found something that is very easy (and very old), works really well and is compatible with a modern lifestyle. You do not have to be obese to massively improve your life by reading this book. The whole book is backed up by solid science and you can verify everything by checking it out on Google Scholar. You will not believe it until you try it: it is much easier to skip e.g. breakfast than to count your calories during the day (no suffering). An important myth is debunked straight away: breakfast is NOT the most important meal of the day (who came up with that in the first place? based on what science?) - often breakfast is really more like a desert (cereals anybody?) - skip it! Some key points (there are loads in the book): 1) Insulin is the key reason why people get obese (the data is clear, there are loads of studies quoted) 2) eat high fat (the low fat movement was what lead to skyrocketing obesity and diabetes figures in the first place) 3) eat in time restricted windows each day for 8 or 6 hours in a day (e.g. from 12pm to 8pm each day) - i.e. no breakfast - this will allow your insulin to drop to low levels and reset insulin resistance 4) when you do not eat, only water, coffee and tea are allowed (no sugar and no sweeteners) - if you are really struggling, add cream to your morning coffee 5) your goal is to keep insulin low when you eat - so you have to avoid all added sugars and sweeteners and all juices / soft drinks / etc. - do not drink liquid carbs or sweeteners. Do not eat bread or other refined grains (that was a tough one for me, but you quickly get used to it) 6) do NOT snack - try and only eat twice a day (you can eat a larger quantity if you struggle) - I used to snack all the time and you can quit it just like smoking or any other bad habit 7) to lose material weight (or reverse type 2 diabetes or pre-diabetes), longer fasts can be required - 36/42 hours are popular (and surprisingly easy to implement), up to 7 days are advocated (but not more often than once a quarter) 8) If you are pregnant or trying to get pregnant as a woman, you have to be more careful fasting as your fertility level / hormones can be temporarily influenced by temporary food withdrawal 9) Drinks green tea / peppermint tea against hunger pangs, works really well 10) Take 2-3g salt / day to avoid headaches and take mineral supplements (otherwise you might get a headache, especially if you do 24/36/42 hour fasts) 11) Do not count calories when you eat - try to eat until you are full and eat whole foods (not processed garbage like ready meals) 12) When you skip breakfast and/or lunch, you can of course have a social dinner with friends without having a bad conscience You get all the details on how-to in the book. I have read many IF books and this is the best one by far. Hope it helps!

## Features

- New Store Stock

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | 9,737 in Books ( See Top 100 in Books ) 8 in Oncology Nutrition 23 in Public Health & Preventive Medicine 130 in Medicine & Nursing |
| Customer Reviews | 4.6 out of 5 stars 36,967 Reviews |

## Images

![The Obesity Code: the bestselling guide to unlocking the secrets of weight loss: 1 - Image 1](https://m.media-amazon.com/images/I/61W-yqm5c3L.jpg)

## Available Options

This product comes in different **Format** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This book led me to permanently change my eating pattern
*by P***R on 28 July 2018*

I'm writing this review 18 months after reading the book because after this time I can conclude that it's been life-changing. On the book itself, I'd say it was a fascinating and compelling read. Fung clearly explains quite complicated physiological mechanisms and provides evidence that I found very convincing (with one exception). 18 months on, the bits that have stuck are not the complicated issues but simply: 1 My body, and especially my liver, needs a regular rest from eating and from the constant blood insulin levels that frequent eating produces. 2 I'm probably stuck with whatever level of insulin resistance (and consequent stored fat) that developed through my adult life (I'm over 60) but I can help prevent further damage. 3 I shouldn't feel hungry when I fast intermittently (This was the life changer for me because I found it's true!). 4 Try to avoid discussing your intermittent diet regime with family and friends. They will simply go on and on with the usual uniformed diet rubbish that I used to believe myself. The one exception in terms of evidence, was the value of cider vinegar. I wasn't convinced by Fung's evidence, so I haven't tried it. So, how has the book changed my life? I haven't lost much weight but nor have I really tried to. I have lost about 6 pounds over 18 months but importantly this is against a history of putting on a pound or 2 every year. What I have done is put 'breakfast' back to 7pm or later every day. I only consume water or black coffee/tea up to that time. And the magic part is that I don't feel hungry even when sitting with others who are eating scrumptious meals. So, it doesn't require any willpower! If it did, I couldn't have sustained it. I still feel amazed and empowered every day when I realise that I haven't eaten for 19-21 hours and I don't feel hungry. As Fung points out its easy and its free! In May this this year my diet was put to a pretty tough test. I cycled the North Coast 500 over 9 days. This is a challenging and hilly route, averaging about 57 miles/day. I didn't expect to stick to my fasting regime but over 15,00 miles of training in 11 weeks before the trip (60-85 mile days) I discovered that it was not a problem! I added calorie-free electrolyte replacement to my water bottles and never experienced dips in energy due to low blood sugar. With that now behind me I am as confident as I can be that I won't need or want to change my eating pattern in future. This book gave me a basis for trying something that flew in the face of a received wisdom that had me trapped in a cycle of eating and craving, which seems to be the common experience of almost everyone I know. I would strongly recommend it as a serious contribution to better understanding of the effects of diet on insulin release and the effects of excessive insulin release on long-term health.

### ⭐⭐⭐⭐⭐ Finally something that works and is easy to implement (no need to be obese to love this book)
*by J***2 on 3 August 2021*

After decades of failed yo-yo diets, calorie counting, exercising, being hangry, you name it... finally I have found something that is very easy (and very old), works really well and is compatible with a modern lifestyle. You do not have to be obese to massively improve your life by reading this book. The whole book is backed up by solid science and you can verify everything by checking it out on Google Scholar. You will not believe it until you try it: it is much easier to skip e.g. breakfast than to count your calories during the day (no suffering). An important myth is debunked straight away: breakfast is NOT the most important meal of the day (who came up with that in the first place? based on what science?) - often breakfast is really more like a desert (cereals anybody?) - skip it! Some key points (there are loads in the book): 1) Insulin is the key reason why people get obese (the data is clear, there are loads of studies quoted) 2) eat high fat (the low fat movement was what lead to skyrocketing obesity and diabetes figures in the first place) 3) eat in time restricted windows each day for 8 or 6 hours in a day (e.g. from 12pm to 8pm each day) - i.e. no breakfast - this will allow your insulin to drop to low levels and reset insulin resistance 4) when you do not eat, only water, coffee and tea are allowed (no sugar and no sweeteners) - if you are really struggling, add cream to your morning coffee 5) your goal is to keep insulin low when you eat - so you have to avoid all added sugars and sweeteners and all juices / soft drinks / etc. - do not drink liquid carbs or sweeteners. Do not eat bread or other refined grains (that was a tough one for me, but you quickly get used to it) 6) do NOT snack - try and only eat twice a day (you can eat a larger quantity if you struggle) - I used to snack all the time and you can quit it just like smoking or any other bad habit 7) to lose material weight (or reverse type 2 diabetes or pre-diabetes), longer fasts can be required - 36/42 hours are popular (and surprisingly easy to implement), up to 7 days are advocated (but not more often than once a quarter) 8) If you are pregnant or trying to get pregnant as a woman, you have to be more careful fasting as your fertility level / hormones can be temporarily influenced by temporary food withdrawal 9) Drinks green tea / peppermint tea against hunger pangs, works really well 10) Take 2-3g salt / day to avoid headaches and take mineral supplements (otherwise you might get a headache, especially if you do 24/36/42 hour fasts) 11) Do not count calories when you eat - try to eat until you are full and eat whole foods (not processed garbage like ready meals) 12) When you skip breakfast and/or lunch, you can of course have a social dinner with friends without having a bad conscience You get all the details on how-to in the book. I have read many IF books and this is the best one by far. Hope it helps!

### ⭐⭐⭐⭐⭐ Fantastic
*by L***R on 9 July 2020*

I bought this 2 1/2 months ago and have been following the guidelines for the past 2 months. I am getting great results, feeling so much more energetic, stopped feeling the hunger pangs I used to get and best of all I get to eat everything I want, but the right foods. Fasting is a really interesting concept I never thought I would ever do but I have done around two 24-hour fasts a week since reading this. I am losing weight as well which is excellent, the real test if whether it stays off, but that will take 1-2 years until I am able to say. I have lost lost of weight on various diets over the years but this appears to promise to be sustainable and has a program to stop the body from attempting homeostasis (ie. to take your back up to your pre-diet weight). It is EASY to follow, and cheap! The science behind it really makes sense too, I completely get it, wish I'd have read this years ago. The basics of the theory is that our weight is controlled by insulin and therefore we should try not to spike our insulin too much and too often. I can only say I feel amazing doing this, I love it. This is what I have been doing: 1. Eating 2 meals a day, a later breakfast and and earlier supper 2. Drinking water/tea/coffee only, no fizzy drinks 3. Not eating refined carbohydrates - sugar, pasta, bread, etc 4. Having 18 hours between meals, eg. supper at 4pm and breakfast at 10am. 5. Making sure I eat enough calories a day, so also eating 90% dark chocolate and nuts as well, which I have grown to love. Please please read this, even if you are not overweight, it will teach you so much about how your body operates that we seem to have forgotten over the years. A real eye opener. This is the best book written by Dr Fung in my opinion, I have read all of this others since reading this. I would also recommend Eat to Live by Dr Fuhrman, which with this book has given me a great grounding in nutrition and health.

## Frequently Bought Together

- The Obesity Code: the bestselling guide to unlocking the secrets of weight loss: 1 (The Obesity Code, 1)
- The Obesity Code Cookbook: recipes to help you manage your insulin, lose weight, and improve your health: 2 (The Obesity Code, 2)
- The Diabetes Code: Prevent and Reverse Type 2 Diabetes Naturally (The Code Series, 2)

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*Last updated: 2026-09-16*