> It just doesn't seem to work with everyone

Without a very precise definition of "work", these discussions quickly degrade to near uselessness.

There is a very large difference between "telling patients to exercise more and eat less doesn't result in long term weight loss" and "exercising more and eating less doesn't result in long term weight loss"

The former is true, and the latter is not.

I agree that from a clinical perspective the former definition is more relevant than the latter.