It is my belief that the biggest problem with American health care is that so much money is spent on treating symptoms, but so little is spent on treating causes. This subject was touched on in the movie "Supersize me". Nutrition is such a huge part of good health, and so few doctors push this agenda, all they do is prescribe pills to address the symptoms caused by poor nutrition.
They actually address this topic in the movie. they are talking to a doct in England who tells how he is given "incentive pay" for…. (drum roll) … getting the most people to quit smoking, exercise, eat better, cholesterol levels down… etc. He's sporting a wicked awesome Audi ride as a result.