Walnut is a source mainly of vegetable fats, proteins, a small amount of carbohydrates, as well as dietary fiber, vitamins. Walnut contains micro-, macroelements and tannins. The nut has a high calorie content due to a large amount of fat. Walnut contains fat-soluble vitamins A, E, as well as B vitamins, vitamin C, PP, K. From minerals - a lot of zinc and iodine. It is recommended to improve the functioning of the immune system, endocrine, sex glands, thyroid gland. It is useful for skin diseases.