I'm actually following a keto diet at the moment. (Here's a quick convo with @soulesque so I won't have to repeat that here. ) I'd ask you to do one on that, but they don't actually make any claims as to what we naturally evolved to eat. They just say 'this works'.

I'm interested in the topic of what we used to eat. But, even if we find out, what you say seems to imply that we won't be able to reproduce the wild varieties anyway. I mean, we bred and changed everything! Even fruits and vegetables. I bet fruits never were as sweet as today. (Even a kid can wonder, "Bananas have no seeds: that makes no sense, why do they exist? What's in it for the plant?")

I recently added this to my wishlist. Hopefully that'll answer a few questions.