An ovo-vegetarian is someone who follows a vegetarian diet but includes eggs. This means they do not eat meat, poultry, or fish, but they do consume eggs as a source of protein and other nutrients. Ovo-vegetarians may choose this diet for health reasons, ethical concerns regarding animal welfare, or environmental considerations. Unlike other vegetarian diets, such as lacto-vegetarian (which includes dairy products), ovo-vegetarians focus solely on eggs as their animal-derived food. This dietary choice allows for a variety of meal options, including dishes like omelets, frittatas, and baked goods that contain eggs, while still adhering to vegetarian principles.