he following are the major categories:Semi-vegetarian: includes some but not all animal products, such as poultry, seafood, eggs, milk, and milk products.Lacto-ovo-vegetarian: includes eggs, milk, and milk products, but excludes meat or seafood.Lacto-vegetarian: includes milk and milk products but no eggs, meat or seafood.Ovo-vegetarian: includes eggs as the only animal protein source.Vegan: inclu