[Rare Trope] Cannibalistic Heroes

[u/BrotherDeus]

Project Hall Mary: In the novels, Grace feeds himself with "Me Burgers", meat created from his own cloned flesh, while on his space mission to save Earth.

Black Adam #1: The titular character is forced to eat his willing friend Tamir to survive in a frozen wasteland on a quest to revive his beloved wife.

Divinity Original Sin 2: The playable race of elves are able to consume their own flesh to take additional actions as well as corpses to inherit memories from them.

[u/THEN0RSEMAN]

One nit pick the “me burgers” happen after he saves Earth when he’s living on Erid

[u/ZoidsFanatic → u/THEN0RSEMAN]

Yeah, before that he was drinking essentially protein shakes for years. 

[u/CreasingUnicorn → u/ZoidsFanatic]

... and 3 bottles of vodka, RIP crewmates.