Dr. Jason Fung Books

When we look around at the modern world, it’s clear we’re not suffering from a shortage of food—we’re suffering from an excess. The average person eats not just three meals a day, but snacks constantly. Our cultural belief has become that to maintain metabolism, we must keep eating. Yet biologically...

From The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

To understand fasting, we must understand insulin’s central role. Insulin is sometimes called the 'fat-storage hormone,' but it’s more than that—it’s the master regulator of energy. Its job is to shuttle glucose into cells after meals. When insulin is high, the body is in 'storage mode.' When insuli...

From The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

When we look around the world today, the numbers are staggering: hundreds of millions afflicted by type 2 diabetes, and those figures continue to climb every year. This explosion cannot be explained merely by genetics. What changed is our environment — particularly how and what we eat. Over the past...

From The Diabetes Code: Prevent and Reverse Type 2 Diabetes Naturally

To understand diabetes, we must first understand insulin. Imagine insulin as the key that unlocks your cells so glucose can enter and be used for energy. When insulin levels rise, glucose moves into cells, and blood sugar falls. When insulin drops — such as during fasting — stored energy is mobilize...

From The Diabetes Code: Prevent and Reverse Type 2 Diabetes Naturally

The central message of both *The Obesity Code* and this cookbook is that hormones, not calories, determine body weight. Insulin—the hormone that regulates blood sugar—is the key driver of fat storage. Every time you eat, your body releases insulin to manage the glucose circulating in your bloodstrea...

From The Obesity Code Cookbook: Recipes to Help You Manage Insulin, Lose Weight, and Improve Your Health

Before delving into recipes, it’s vital to create an environment that supports your new metabolic goals. Your kitchen is not just a place of preparation—it’s a space of transformation. Stocking it thoughtfully is the first act of commitment to your health. The most essential pantry staples are those...

From The Obesity Code Cookbook: Recipes to Help You Manage Insulin, Lose Weight, and Improve Your Health