Nutrition is an especially crude science with nothing approaching scientific theory, and a lot of disagreement. FDA recommendations like the food pyramid that r

Nutrition is an especially crude science with nothing approaching scientific theory, and a lot of disagreement. FDA recommendations like the food pyramid that recommend altering fats/carbs are the result of political consensus as much as science, and there are many counter-examples to the idea of high carbs / low fats in the diets of different peoples of the world.