[kahljorn]

"But should the government be in the business of defining what is good and bad dietary behavior? "

No, obviously it should be put into the hands of researchers. Nothing the government does should be lacklusterly based on some opinion they delved out of nothingness, we pay/elect them to make thoughtful decisions based on facts and relevant, often scientific, data.

I agree with the other issue you put forward, and is why I suggest the intervention in education and reinforcement.