It would probably be more accurate to say that diet and exercise alone are not enough for most people with Type 2 diabetes in the US. They are still an importan

It would probably be more accurate to say that diet and exercise alone are not enough for most people with Type 2 diabetes in the US. They are still an important part of intervention. But as a practical matter, telling people who've developed Type 2 to just suddenly gain the willpower to do both of those things really isn't going to be enough to stop progress of the disease.