The term “vegetarian” is really a misnomer since vegetarians eat more than just vegetables. Vegetarian simply means a plant-based diet. There are several kinds of vegetarian diets, defined by what types of foods are consumed. A breakdown of the types include:

VEGAN / A STRICT VEGETARIAN avoids all foods of animal origin, including meat, poultry, fish, dairy products, and eggs. Most veggie lovers are not strict vegans.

LACTO-VEGETARIANS include dairy products in their diet. 

LACTO-OVO-VEGETARIANS also eat dairy products and eggs.

PESCO-VEGETARIANS eat fish, dairy products, and eggs along with plant foods. (This is believed by many to be the healthiest diet for most people).

SEMI-VEGETARIANS eat a little poultry along with fish, as well as dairy products and eggs. 

Information from ASK DR. SEARS at: https://www.askdrsears.com/topics/feeding-eating/family-nutrition/vegetarian-diets/12-frequently-asked-questions-about-vegetarian-diet