If you read my original comment more carefully, you'll see it doesn't make any claims about adherence rates. All it points out is that we've been telling people to eat healthy but people have only gotten fatter. The studies I found show adherence rates are poor and are correlated with positive health outcomes, so I'm not seeing the contradiction you're implying exists. So again, stop getting your opponent to write your arguments and do your research for you, and explicitly lay them out in your comments.