Well, what do you know.  Technocratic, top-down planning of food consumption produced adverse results. All those well-meaning suggestions have come into question.

The crux of the controversy is the quantity of fat and carbohydrates we consume and how it influences cardiac health. As Scientific American recently pointed out, ever since the first set of guidelines in 1980, Americans heard that they had to reduce their intake of saturated fat by cutting back on meat and dairy products and replacing them with carbohydrates. They dutifully complied. Since then, obesity has increased sharply, and the progress that the country has made against heart disease has largely come from statin drugs.