Hazelnuts are a type of tree nut that is rich in nutrients and has a distinct, nutty flavor. They are a good source of healthy fats, protein, fiber, and antioxidants. Hazelnuts are also high in vitamin E, magnesium, and folate, which can contribute to overall health and well-being. They can be enjoyed as a snack, added to baked goods, or used to make nut butter. Hazelnuts have a crunchy texture and a sweet, buttery flavor that makes them a popular ingredient in a variety of culinary dishes.