The main source of nutrition for cancer cells is glucose. Cancer could be suppressed if there were a life-supporting nutrient to replace glucose. The author, who has treated cancer patients for many years, has been using a ketogenic diet (diet therapy in which the intake of carbohydrates is reduced and most energy is taken in the form of fat) as a treatment for end-stage cancer. In a worldwide first, he has proved the effectiveness of a ketogenic diet in cancer treatment through a clinical study. In this book the mechanism and effectiveness of the ketogenic diet is explained in clear language for a general audience.