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In reply to the discussion: Red meat plays vital role in diets, claims expert in fightback against veganism [View all]The Velveteen Ocelot
(115,683 posts)In those places - mostly the far north - people have to eat fish, meat and dairy products because although there might be enough vegetation to feed animals, they can't maintain large-scale farming of enough vegetables for human consumption. I would assume the process of evolution has had some effect on those populations and people descended from them insofar as what kinds of foods are most nourishing for them. Lactose intolerance, for example, is rare in northern Europe and in some other parts of the world where people domesticated animals that could be milked, such as the modern Middle East and northwestern India. Populations that raised animals not used for milk made up the rest of the world's populations, and lactose intolerance is common in those populations.