The more the government studies our nutritional needs, the heavier Americans get. I've gone back to butter and whole milk. If the experts can't figure out fats, carbs, and supplements, and now find good stuff in chocolate, coffee and wine, why follow the guidelines? Eat less, move more. The rest is footnotes.
My own theory is, the more fat and real sugar you remove from food, the hungrier people get, so they just eat more.