chilepepper's post here started out so good but should have stopped after the first few sentences.
No one can know how healthy hunter-gatherers were back in the days of the La Brea tar pits, but today their low life expectancy has very little to do with being eaten by vertibrate predators. As for Atkins, check out Michael Fumento, a real health conservative. To paraphrase, you'll lose weight if you cut out two isles of the supermarket, but it doesn't matter which two. What bugs me about Atkins is not the diet but the know-it-all style of his writings. Of course, it may take one to know one ;-)
the story is in the bones. Hunter (and hunter-gatherer) skeletons showed remarkably good teeth and strong bones and were relatively tall. a forensic study would show that these folks died from wounds.
Once humans adapted to sumerian and egyptian city life where they lived off bread, their skeletons show terrible teeth, weaker bones, and evidence of various diseases. these folks died from disease