At one point there was a fad diet called *The Garden of Eden* diet. Seems some people thought it was good for you because that’s how Adam and Eve ate and God told them to eat that way. Except it never seems to have occurred to them that we no longer have Garden of Eden bodies.
I personally don’t think Abel, who was killed by his vegan brother Cain, only raised sheep to shear for wool. He probably ate of the sacrifices he made to God.
Cain’s vegan sacrifices were rejected.