Since we are nitpicking evolution: we are clearly not evolved to eat human. Specifically, we are vulnerable to prion disease.
By that logic, we are most certainly not "evolved to eat" any sort of livestock, as nearly all of our serious epidemic diseases have a zoonotic origin.
On the other hand... IIRC the proportion of plants that are toxic for us to eat is massively higher than the proportion of animals that are toxic for us to eat. And I'm not talking about just mammals, but rather the entirety of the kingdom animalia - there are relatively few animals, birds, fish, moluscs, insects, etc. that are unsafe for us to eat. Not necessarily tasty, mind you, but largely edible.
Not pufferfish, nor some jellyfishes, and I think some butterflies though I'm not sure. Probably wouldn't recommend poison dart frogs either

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