2. Caviar mainly refers to the eggs of fish. This kind of roe is rich in protein, amino acids, fat, vitamins and minerals. Eating a proper amount of roe can nourish and protect the liver, nourish nerves, improve eyesight, enhance the elasticity of blood vessels, reduce the probability of cardiovascular diseases, and enhance the body's disease resistance to a certain extent. However, because it belongs to a high-protein food, it is easy to form allergic diseases after eating too much, which may easily lead to systemic erythema and papules.