That's true. I think my point still stands if we consider that the practices of these groups were probably not portable to all regions/people of the world. But

That's true. I think my point still stands if we consider that the practices of these groups were probably not portable to all regions/people of the world. But still, it's interesting to think about how for a very long time, a good number of people achieved the moral ideal here without advanced understanding of nutrition. We ruined this with factory farmed dairy/eggs.