"The Obesity Code" delivers the scientific arguments behind the topic of weight loss and the hormones that drive body mass changes. The hormone insulin and insulin resistance are the two factors that decide how and if we lose weight. In his book, Jason Fung explains a new, solid theory of obesity that gives surprising insights into how to eat well. He offers solutions such as intermittent fasting as a means of combating insulin resistance. Furthermore, he lists steps and habits that will help you achieve better insulin control and improve your weight.