> Some people tell me going "ketogenic", or reducing carbs is healthy. I am now skeptical of this claim as lowering carbs makes me feel hungry and tired, and the drink taste less sweet. Perhaps it would be possible after an unpleasant transition period, but I don’t see the ultimate gain... Their advice seems to fall in line with the paleo/primal philosophies—in a nutshell: man only started eating a significant amount…
10k years is plenty enough: http://www.salon.com/2013/03/10/paleofantasy_stone_age_delus... In fact, 10k years is enough for dogs to have evolved to digest carbs a lot better. There's even specific genes that are known to help that.
Obviously there has been some adaptation to the change of diet, and it is also obvious that this diet was not letal to human (or nobody would have adopt it), but this does not implies that it is optimal for human consumption. Most people in my region are not lactose intolerant... but do you know what? I threw up every time that my mother had me drink a glass of milk because it was "healthy" and good for my bones. If adaptation depends that much between humans (the % of lactose intolerant or lactase persistent is not the same in the US than in China or Africa, for example), trying to correlate anything with animals seem completely off to me.