Caviar mainly refers to a kind of food made from fish eggs, which is very rich in nutritional value and has a wide range of functions. From the point of view of nutrition, caviar contains a lot of protein, amino acids, fat and rich B vitamins. It can not only improve visual fatigue, nourish nerves, but also whiten skin, and has a good auxiliary treatment effect on dry skin and dry eyes. It can promote the secretion of digestive juice in digestive tract and stimulate appetite. However, it should be noted that caviar belongs to hair, and patients with allergic diseases should use it with caution.