> There's reason to believe our bodies may be more adapted to eating natural or traditional foods, having eaten them for hundreds of thousands of years rather than one or two generations.
This is an argument that no white people should be eating pineapples, mangos, bananas, kiwifruit, etc. Hell, probably not even apples.
They will be fine, white people have, as everybody, African ancestors.
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No it is not.
Different kinds of fruits from around the world may well have more in common with each other than categorically new synthetic compounds which are found in processed food.
Pretty much all people ate real foods - plants, animals, and fungus, and ferments of these, all over the world. There are categorical chemical differences between this stuff and much modern food.