The Obesity Code: the bestselling guide to unlocking the secrets of weight loss by Dr Jason Fung

The Obesity Code by Dr Jason Fung examines why weight gain can persist even when people follow common advice such as calorie counting and regular exercise. Set against the backdrop of an obesity epidemic, the book questions why widely shared diet guidance has not delivered lasting results.

Dr Fung presents a theory that obesity is driven by hormones rather than a lack of self-control. He argues that the overproduction of insulin is a root cause of obesity and related illnesses, including type 2 diabetes, and sets out scientific evidence for his view that reversing insulin resistance is essential for long-term weight loss. The book also explores the idea that when you eat matters as much as what you eat, outlining five basic steps described as lifelong eating habits to support health and insulin control, alongside an explanation of intermittent fasting as a method to break the cycle of insulin resistance.

Key details

• Author: Dr Jason Fung
• Presents a hormone-based theory of obesity
• Discusses insulin overproduction and insulin resistance
• Links obesity with illnesses including type 2 diabetes
• Includes five basic steps described as lifelong eating habits
• Explains intermittent fasting in relation to insulin resistance

Synopsis

This book challenges conventional explanations for weight gain and asks why standard approaches do not always work. It argues that insulin and other hormonal factors play a central role in obesity and related illness, and focuses on reversing insulin resistance for lasting weight loss. It also considers meal timing, presenting five basic steps for long-term eating habits and outlining intermittent fasting as part of the approach.