Generally speaking, vegetarians don't eat the meat of all animals, including meat, fish and seafood. But as a transition, vegetarians who only eat eggs and milk are allowed. This vegetarian diet is called ovalbumin. Generally speaking, vegetarians refer to vegans. They don't even eat animal derivatives, including eggs, milk and honey. More strict vegetarians don't even eat five spices, including onions, garlic, leeks and onions.