Jared Diamond drew an analogy between New Guinea tribes and paleo diets. If modern hunter-gatherers are similar to paleo hunter-gatherers, the women gather most of the calories (tubers, some fruits, grain) and the men hunt a little meat if they are lucky.

Colder regions might have had more meat consumption (look at modern Inuit), but those were the last holdouts of the Neanderthals (by some accounts). Humans won the cold regions by becoming smart technical hunters, not Spaaaartans.