Authors Lustig, Cordain and Sisson have been OK in explaining to me the principles that also the carnivore is based on. Though I lean more to the plant-based-organic-if-possible-(80%). Personally I don’t know any 100%-carnivores, but in bitcommunity I know Josef Tetek (may not be on Nostr, but on X is as @satsjoseph

In general in those books you’ll find out that anything with a bill-of-materials and not organic is shit.

I’m adding a few other books which adds more detail to certain aspects (like The Energy Plan).