* Lacto-ovo-vegetarian: Eats dairy products and eggs, but no meat, poultr or fish. This is the most common type of vegetarianism. * Lacto-vegetarian: Eats dairy products but avoids meat, poultry, fish, and eggs. * Ovo-vegetarian: Eats eggs but avoids meat, poultry, fish, and dairy products. * Vegan: Avoids all animal products, including meat, poultry, fish, eggs, dairy, and sometimes other animal derivatives like honey or gelatin. * Pescatarian: This diet includes fish but excludes meat and poul