Cannibalism, tellingly, isn’t illegal in many countries. It’s perfectly legal, for example, across most of the United States of America—Idaho’s felony law prohibiting cannibalism is an anomaly. Kill and eat a human, and the authorities will charge you with murder, of course; merely eat a human, and you may be hit with the charge of desecrating a corpse; in most states, it’s a misdemeanor. I’m not telling you this to imply you should eat a human; I’m telling you this merely to show you that you could eat a human. If your tastes run that way, that is.
