Walnut, also known as walnuts, qiang peach for juglandaceae plants. With almonds, cashews, hazelnuts and called the world famous "four nuts". Walnut meat is rich in nutrients, each hectogram including 15 ~ 20 grams of protein, fat, 10 grams carbohydrates; And contain essential calcium, phosphorus, iron and other trace elements and minerals, and carotene, lactoflavin and so on the many kinds of vitamins. Beneficial to human body, builds the brain.