One Man’s Meat is another man’s poison

Proverbial Meaning: Everyone is different, some people like the things other people hate.

Literal Origins: "meat" in this context means "food", so it means what some people eat as food may be poisonous or taste very bad to other people.

Common Usage: This proverb is still in regular use, it is often used in response to someone’s distaste or shock regarding someone else’s likes, hobbies or literally the food they’re eating.