This is the advice from Michael Pollan in his new book, In Defense of Food. The basic idea is that most of what Americans buy at the supermarket and consume is not food, but food-like substances created in the labs of places like General Mills. Most of this crap is sold in the middle aisles of the market, so if you want to eat healthy, stick to the perimeter where you'll find dairy, meat, fruit and vegies. Sound advice.

Comedian Lewis Black, on the other hand, thinks it's all bullshit. You can't believe what the experts tell you because they don't fucking know anything. Instead he offers his wisdom on health:

• The good die young, but pricks live forever
• If you masterbate 20 times a day, you'll never make it out your front door.

Hard to argue with either of those.