What Religion Doesnt Eat Garlic And Onions?

What Religion Doesnt Eat Garlic And Onions? Among the pure-vegetarians, there’s a special category known as Jains. It’s known to everyone that Jains don’t even eat vegetables that grow underground for example onion and garlic. But have you ever thought, why is it so? Jainism is an extremely non-violent religion. What dont Hare Krishnas eat?