Chestnut is not only sweet, but also has high nutritional value. It contains various nutrients, such as sugar, starch, protein, crude fiber, carotene, vitamin A, vitamin B 1, vitamin B2, vitamin C and mineral elements such as potassium, magnesium, iron, zinc and manganese, among which the starch content is 50% ~ 70% and protein is 5.7% ~ 6544. Chestnut is rich in vitamin B 1 and vitamin B2, which is at least four times that of rice. Every 1000 g of fresh chestnut also contains 240 mg of vitamin C, which is incomparable to cereals. Chestnut is rich in minerals, especially potassium, which is four times higher than that of apples said to be rich in potassium. Chestnut is also widely used in food processing, cooking and non-staple food, raw food and fried food. Fried chestnuts and crispy chestnut chicken with sugar are delicious and memorable. Chestnuts can also be ground into powder, and can also be made into various dishes, cakes, cans and so on. Chestnut is mostly produced on hillside, which is called "healthy food" abroad, and belongs to the first-class fruit of invigorating stomach and kidney and prolonging life.