MarkH, over at Denialism, posted an excellent article about obesity, related health risks, and issues that obscure the problem of obesity. Rather than pull out the best parts, I'm merely going to plug the entire article. Go read it, and the comments. The whole thread is a good read, raising important issues not only about the health risks of obesity, but the cultural and psychological issues that go along with it, and how few options we currently have for taking care of the problem. It's a great discussion. Head on over there.