Jim >The definition of paleo edibility is certainly an empty one unless it also includes the concepts of availabililty and preferability. Todd > I agree, but that's why the picture gets blurry. Our guesses about availability are severely underdetermined by data. SOME of our guesses about availability are undermined by data, such as the guess that they'd have eaten potatoes. It's anyone's guess whether spuds and ding dongs were eaten by our paleolithic forebears. It's as clear as you can get that they were eating meat. Berries and wild fruits in season. Certainly nuts edible raw. Add to that list at your own risk.