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The Hunger Code

Resetting Your Body's Fat Thermostat in the Age of Ultra-Processed Food

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The Hunger Code

By: Dr. Jason Fung
Narrated by: Brian Nishii
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THE SEQUEL TO THE MULTI-MILLION COPY BESTSELLER THE OBESITY CODE

"Jason Fung nails it again in The Hunger Code. This book clearly and compellingly explains why most Americans are overweight and gives us a concise, evidence-based way to manage our weight with as little hunger as possible."—Dan Buettner, New York Times bestselling author of The Blue Zones

The Obesity Code helped thousands of people lose weight naturally.

The Hunger Code will help thousands more lose weight—and keep it off—in an era of weight-loss drugs and ultra-processed foods…without counting calories.

For generations, we've accepted the story that weight loss can never last—that as soon as we go off the diet or stop taking the medication, we revert to our old habits, regain the weight, and the calorie-counting journey starts all over again. Traditional medicine continues to treat the symptom of weight gain rather than addressing its root causes. Too often, healthcare systems intervene with quick fixes and short-term solutions, ignoring the factors that lead to sustainable weight loss that can last a lifetime.

What if the secret to long-term weight maintenance and better health isn’t just about what you eat—or even when you eat—but why you eat?

With the food industry's reliance on ultra-processed foods and the popularity of Ozempic and Mounjaro, understanding the forces behind why we eat is more important than ever before.

In The Hunger Code, New York Times bestselling author Dr. Jason Fung reveals the three powerful forces that drive us to eat:

- Physical Hunger

- Emotional Hunger

- Social Hunger

Dr. Fung also introduces the concept of the body’s “fat thermostat”—a biological “set point” that regulates how much fat your body tries to maintain. Guided by hormones and metabolism, this internal system drives hunger and energy use, explaining why lasting weight loss requires more than just willpower …

With three Golden Rules and 50 actionable tips, The Hunger Code empowers you to recognize and respond to hunger appropriately. Learn how to slow digestion, break emotional eating cycles, and overcome social pressures to eat constantly, so you can maintain a healthy weight—from scratch, after fasting, or after using weight-loss drugs.

PLEASE NOTE: When you purchase this title, the accompanying PDF will be available in your Audible Library along with the audio.

©2026 Jason Fung (P)2025 Audible, Inc.
Diets, Nutrition & Healthy Eating Fitness, Diet & Nutrition Weight Loss & Weight Control Nutrition Mental Health Health
All stars
Most relevant
I have read all of Dr Jason Fung’s books and seen how he continues to learn and share with us. This book helps to understand how and why and equips us with the skills to become healthier. I’ve ordered a hard copy and I am going to be dropping one off at my GP surgery. There really is hope. Thank you to Dr Jason Fung.

Hope, real hope for us all

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I like Fung but this book fell a bit flat. It wasn't as linked to proper research as his videos, there is an external PDF included but it didn't link to proper studies just what was said in the book. Secondly, Fung mentions things that as far as I know, he hasn't done research about and again, doesn't link it up with other researchers to have a leg to stand on.

Great insight but there are some flaws

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This book provides a fascinating insight into how we have been misled as a society on the cause and solutions to our weight gain and obesity. Dr Fung clearly lays out in layman’s terms what the real causes are and furthermore, steps that can be taken to effectively address this problem. This is a must read for anyone who wants to really understand the reasons that they are overweight and want to fix the problem for good!

Fantastic insight provided into what the majority of people do wrong when trying to lose weight.

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I’ve been a fan of Dr Fung since first hearing of him, his honesty even if not popular and his explanation of the science back facts he talks about, with what seems like no hidden agenda other than to get his message across to make people healthier. I have listened to the obesity code more time than I can count, I regularly fast but there always seemed to be something missing nagging at the back of my mind . This book had unlocked that for me, just like the flick of a light switch it all makes perfect sense now. Thank you

Amazing

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Finally it’s here, this will change anyone’s life who wants to understand the real truth about our food today

The book we all have to read

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