This book is a continuation from Book 1: FIT FOR LIFE (same authors). This particular book goes into more depth with their Fit for Life program. The authors have done their research quite extensively and they have some good sound principles for eating and living a healthy life. They talk about everything such as the air we breathe, the water we drink, about what kinds of foods we need to eat more of and why, and all facets of health: exercise, sunshine, loving relationships, cleanliness and more. They talk more in detail about animal products, how to feed our children healthfully, detoxification and what to do when it happens; and they give you an idea of how to plan your meals and what to eat. There are recipes towards the back of the book.
I like that they don't "judge" or rant and rave about how eating meat is so wrong and leave it up to the reader to do what's right for them. They do suggest cutting back on meat consumption, and other sources say the same.
It's an all around great book to begin one's health journey. Lots of sound advice in which they've backed up their theories and opinions with several pages of bibliography in the back of the book.
As with all health books, no one health book is correct and perfect in their knowledge of knowing exactly what health entails, so some things are just controversial and will probably be argued over till the end of time. One of those things being the consumption of animal products. So, read this book with an open mind, and then do your own research by reading other health books.