FROM NEW YORK TIMESBESTSELLING AUTHOR DR. JASON FUNG: The landmark book that is helping thousands of people lose weight and heal from disease. Harness the power of intermittent fasting for lasting weight loss, health, and longevity. Understand the science of weight gain and insulin resistance.  Stop suffering and ditch calorie counting, yoyo diets, and excessive exercise for good. Have you been diagnosed with obesity or type 2 diabetes, or told you by your doctor to lose weight? In this book, you will discover that likely everything you’ve been told about how to lose weight is wrong. Weight gain is driven by hormones―in everyone―and only by understanding the effects of insulin and insulin resistance can we achieve lasting weight loss and even work to prevent and reverse type 2 diabetes and obesity naturally. In this highly readable and provocative book, Dr. Jason Fung, long considered the founder of intermittent fasting, sets out an original theory of obesity and weight gain. He shares five basic steps to controlling your insulin for better health. And he explains how to use intermittent fasting to break the cycle of insulin resistance and reach a healthy and healed body―for good.