胡桃 (Walnut) is a type of tree nut known for its rich flavor and nutritional benefits. It is commonly used in cooking and baking, adding texture and taste to various dishes. Walnuts are a good source of healthy fats, protein, and essential vitamins and minerals, making them a popular choice for health-conscious individuals. The walnut tree, scientifically known as Juglans regia, is native to regions of Central Asia and has been cultivated for thousands of years. In addition to their culinary uses, walnuts are also valued for their oil, which is used in salad dressings and cooking.