From the pioneer of intermittent fasting: the landmark book that is helping thousands of people lose weight for good.

From New York Times Bestselling author Dr. Jason Fung.

  • Harness the power of intermittent fasting for lasting weight loss

  • Understand the science of weight gain, obesity, and insulin resistance

  • Enjoy an easy and delicious low carb, high fat diet

  • Ditch calorie counting, yoyo diets, and excessive exercise for good

Everything you believe about how to lose weight is wrong. Weight gain and obesity are driven by hormones—in everyone—and only by understanding the effects of the hormones insulin and insulin resistance can we achieve lasting weight loss.

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 weight—for good.