Fish vegetarians, represented by Einstein who ate caviar, are special vegetarians who use eggs and milk most of the time.

A strict vegetarian will avoid eating all foods made from animals, such as eggs, milk, cheese and honey. Apart from food, a strict vegetarian will not use items made of animals, such as leather, fur and cosmetics containing animal ingredients.

Lacto-egg vegetarians and meatless vegetarians will eat some foods made by animals, such as eggs and milk. Some vegetarians who don't eat meat refuse to eat cheese and eggs produced by factories for moral reasons. Vegetarians don't eat meat, but they can use milk and its related products, such as cheese, cream or yogurt. Egg element, similar to milk element, can eat eggs and related products.