It's pretty obvious to any intelligent person that the hunter/gatherer diet is best for man, as even archeologist digging up ancient bones know pretty quickly whether it was a hunter/gather people or an agricultural people. The hunters were always much more healthy (strong bones, healthy teeth, no cardio disease), while the agricultural peoples were riddled with disease. This is virtually without error, according to archeologist. I can understand in times past that agri. diets had its place, in that it is a cheap, although unhealthy, way to sustain human beings. But for the US Gov. to continue this con with their laughable food pyramid, is criminal. I can only deduce that the big food corporations pumping out their cheap agricultural staples with its enormous profit plays a big part in this misinformation.