This book is a total eye opener. I was a healthy eater to begin with, and very much into organic foods, etc. However, just in general this book caused me to look into a lot of things, and to all around change many of my eating and lifestyle habits for the better. This books is educational, amazing, well written, and should be a must read for every person out there, especially those extremely unhealthy people. However, it is very no non-sense and even vulgar with language, it's rude yet witty and not for those without thick skin, or who are young kids---like under 16.