"Raw fooders seem to have great zeal and think theirs is the only way."
Yes, I admit, I'm guilty. But as you mentioned about dog feed, I think it would be okay to eat anything you wanted if it wasn't processed junk, like when people made their own bread a century ago (?) and didn't buy bread with high-fructose corn syrup and preservatives in it, AND it WAS whole wheat back then ;).
Besides, human beings didn't evolve eating raw leaves/fruits/berries. It was the Nitrogen in fish (and possibly nuts) that gave us bigger brains. I think bears were right behind us, but we beat 'em to it. After all, we did stem from a rodent just as other land mammals. (Please disregard my comment if you go by the Creationist Theory of Evolution)