A pescatarian diet is primarily plant-based but includes fish and seafood as the main sources of animal protein. Those following a pescatarian diet consume fruits, vegetables, whole grains, legumes, nuts, seeds, and dairy or eggs if desired, while avoiding other meats like beef, poultry, and pork. This diet is often chosen for its potential health benefits, such as heart health support from omega-3 fatty acids found in fish, as well as for ethical or environmental reasons. It offers a balanced approach to nutrition, combining the benefits of a vegetarian diet with the added protein and nutrients from seafood.