This book is definitely not for the weak of heart. Full of tough love, expletives, and awkward analogies, you will feel like you are being yelled at. However, you will get a kick out of reading this and will belly over with laughs as you turn the pages. The premise for this diet / lifestyle is going vegan and paying attention to what you put in your body. While exercise is mentioned, this book does not overdo it. There are no intense gym regiments discussed--the authors suggest simple walking for cardio. Ingredients matter, and the authors explain what many food ingredients mean and how they affect the body. Toxicity, disease, and cancer are investigated, as well. The meat and dairy industry and given an honest look, and hormones / steroids are discussed in the factory farming process. The cruelty done to animals is also not skirted as these vegan authors present a mighty convincing case for going vegan. In terms of getting protein and other nutrients, the authors give nutritional information for what doctors say our bodies really need. Pesticides are also explained as the authors encourage readers to buy organic. What I really liked about this book was how it focused on health and ingredients. Readers are not told to count calories or diet-system "points" or to even starve themselves. Readers are told simply to eat real food and avoid all the chemicals and fake "food-flavored products" that are on the shelves and in the restaurants. It's really quite simple. I highly recommend this book for anyone who wants to be healthy and improve their life.