The Hunger Code

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

By: Dr. Jason Fung

Narrated by: Brian Nishii

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.

Wonderful book to read and then keep as reference!

Loved the way Dr Fung teaches you the science so you know the why to his weight loss tips. Love them last chapter to refer to when I need a refresher or to help me stay on track!

Excellent book

This book is incredibly informational, easy to follow, and the narrator is wonderful and keeps you engaged as a listener.

simplicity

The narrator is excellent and text is not boring but sometimes even entertaining. i like the parables. They are good for a simple-minded eighty three year old.

Great information

I really enjoyed how thorough the explanations are and how relatable Dr fung is. Everyone can get something out of of this book.

Hunger, a hormone phenom

The causal relationship between our hormones, ex insulin or cortisone, and our sensations of hunger (even when we don't need food) is finally explained in a way this non-medical person can understand. This is a great capstone to Dr Fung's previous "Code" books. Bravo. Thank you for information I can understand and incorporate in my life.