The author, Michael Pollan is an expert in nutrition and modern food economics. His other books, The Omnivore's Dilemma and In Defense of Food are two powerhouse books with medical and economic research to back up his points. Food rules is a quick read, 64 rules governing healthy eating.
In short, Pollan writes, "Eat food, not too much, mostly plants". This is the point of the book, not going in depth into amino acids, proteins or carbs. Instead, the author talks in simple, but real terms, such as "eat your colors" and "don't eat anything your grandmother wouldn't recognize as food".
Veron and I had a long discussion years ago about nutrition. We talked about how eating processed foods were not only unhealthy, but also not processed by the human body. We had a very interesting conversation talking about the art of food preparation and how that affects weight gain, absorption and nutrition.
Definitely a great book!