The omnivore's dilemma : a natural history of four meals

I read this book a few years ago, by coincidence I had it checked out and started reading it a little of the way through a weight loss program that I had to do to get a part in a play. It transformed my program and it transformed me. I'll never be the same person again, I haven't eaten fast food (with the exception of Chipolte) since I've read the book and I never will.

This book has a ton of information. I don't fall in fully with all of Pollan's philosophies, some of which contradict throughout the book, but they are a great place to start. You might also like good calorie bad calorie, as well as many of the other books that Pollan references.