The Hunger Code
Understand hunger, cravings and why willpower is not the full story.
The Hunger Code by Dr Jason Fung is a practical, science-led guide to appetite, cravings, weight regain and the modern food environment.
From the bestselling author of The Obesity Code, this book helps readers understand why hunger happens, how ultra-processed foods can influence appetite, and what practical habits may support more sustainable eating patterns.
Why this book is worth reading
- Explains hunger clearly: shows why appetite is not simply a willpower problem.
- Looks at modern food: explores how ultra-processed foods can make overeating easier.
- Introduces the “fat thermostat”: breaks down weight regulation in simple, practical terms.
- Includes 45 practical tips: everyday strategies for eating habits, cravings and appetite control.
- Supports metabolic health education: useful for readers interested in keto, fasting and low-carb living.
The Hunger Code by Dr Jason Fung
The Hunger Code is a practical guide for anyone wanting to better understand hunger, cravings, appetite control and long-term weight management. Written by Dr Jason Fung, bestselling author of The Obesity Code, the book explores the hormones, habits and food environment that influence how and why people eat.
Many people blame themselves when weight loss does not last. Dr Jason Fung takes a different approach, explaining how appetite, hormones, digestion, emotional eating and social pressure can all shape eating behaviour.
Rather than relying on calorie counting alone, The Hunger Code helps readers understand what may be driving hunger in the first place, making it a valuable addition to any keto, fasting or metabolic health bookshelf.
A smarter way to understand hunger
Hunger is not always a simple matter of discipline. The Hunger Code looks at the biological and environmental factors that can make cravings feel stronger, fullness harder to maintain and lasting change more difficult.
With clear explanations and practical advice, Dr Jason Fung helps readers connect the dots between modern food, appetite signals, hormones and everyday eating habits.
Inside the book
- The role of hormones in hunger and appetite.
- Why ultra-processed foods can make overeating easier.
- How digestion speed may affect fullness.
- Strategies for emotional eating and cravings.
- The body’s “fat thermostat” and how it relates to weight regain.
- 45 practical tips for building more sustainable eating habits.
Who is The Hunger Code for?
The Hunger Code is ideal for anyone interested in low-carb living, keto, fasting, appetite control, weight management or metabolic health. It is also a strong choice for readers who enjoyed The Obesity Code and want a deeper understanding of hunger and cravings.
About Dr Jason Fung
Dr Jason Fung is a bestselling author known for making complex metabolic health topics clear and practical. His work focuses on insulin, fasting, obesity, type 2 diabetes and long-term health habits.
What experts are saying
“Dr Jason Fung cuts through diet dogma with clear science and calm conviction.”
Benjamin Bikman, PhD
“This book explains why we can be overfed, yet constantly hungry.”
Robb Wolf
“Filled with fascinating facts about food, hunger hormones, and eating habits.”
Dr Georgia Ede
Add The Hunger Code to your keto bookshelf and get a clearer understanding of why hunger happens.