[bryanlarsen]

~10,000 years is also evolutionary recent. It's enough time for fast evolution to weed out stuff that is very directly maladaptive, but not enough time to weed out more subtle effects. And given that a bad diet tends to kill people well past their prime childbearing years, evolution might consider a bad diet a good thing.

[lithocarpus]

Good point, there are a lot of diseases of civilization that have been with us since large scale agriculture, that did not afflict most hunter gatherers.