Walnuts are a type of tree nut that is native to the region of the eastern Mediterranean and western Asia. They are a popular snack and are often used in cooking and baking. Walnuts are round or oval-shaped and have a crunchy texture and a rich, nutty flavor. They are a good source of protein, fiber, and various minerals, including magnesium, phosphorus, and zinc. They are also a good source of antioxidants and have been shown to have potential health benefits, such as improving heart health and brain function. Walnuts can be eaten on their own as a snack or used in a variety of dishes, including baked goods, salads, and stir-fries. They can be purchased raw, roasted, or salted, and can be found in the bulk section of grocery stores, as well as in packages or cans