Definitely a thing. Within weeks of quitting animal flesh, it stopped having an appealing scent. No matter how fresh meat is, it all smells rotten to me now.

The thing that doesn’t get talked about enough is how people who eat animals also smell like corpses, to varying degrees. It’s strongest right after a meal. And it’s quite obvious when someone eats cured flesh, bologna, and/or hot dogs every day, because they emit a miasma.