As usual, Stephan the biologist delivers. Takes apart the biases in the study and all. Of course, the biases were incorporated in order to explain away the fact that one of the healthiest diets ever observed is one high in saturated fat and animal flesh, to the exclusion of much of everything else.
Let me sum it up: the heavy smoking Masai, who eat almost nothing but raw cow's milk, raw cow's blood, and meat, are healthier – far healthier in every marker — than you, Mr. and Ms. low-fat America.
Later: Just thought of something. Look at the picture on the link to Stephan's blog. Notice anything? How about that nice set of white sparklers in the one tribesman. This reminded me of a Discovery episode the other night I surfed into. It was covering some deeply indigenous population way far from any civilization in Papua New Guinea. I forget the name of the peoples, and they do live in squalor (I'd eat white flour and sugar first), but they looked remarkably healthy. They subsist on tadpoles, frogs, sweet potatoes, and tobacco they grow and dry themselves. The men were all lean, with nice pecs, shoulder decks, and defined triceps. Guess what else? White sparklers all. No missing teeth, and their gums looked quite healthy as well.