Raw and unflavored You need to read this freaky article on the "Raw Food" movement.

...According to one of the few studies available on raw-foodists, the body-mass indices of a quarter of women and a fifth of men who maintained the diet for an average of four years were below normal, and a third of the women had stopped menstruating. In April, a severely malnourished 20-month-old in Queens who had been fed from birth on an all-vegan (though not raw) diet was removed from her home....

Now, the thing is, didn't Homo Erectus use fire? That pushes the possibility of cooking real far back in terms of evolution. These people are going back to authentic our "pre-hominid" state, in more ways than one....