A Complete Summary of The Obesity Code: Unlocking the Secrets of Weight Loss In the book The Obesity Code: Unlocking the Secrets of Weight Loss, Jason Fung chronicles the ballooning of the obesity epidemic from the 1970s to date and proposes a hormonal theory of obesity that sheds light on obesity as a hormonal imbalance disorder rather than a caloric imbalance disorder.He argues that conventional advice to eat less and move more fails because it...