Carp is rich in high-quality protein, and its digestibility can reach 96%. Carp is suitable for people with nephritis edema, jaundice hepatitis and ascites due to liver cirrhosis. Carp is hair and is not suitable for patients with malignant tumors and skin diseases. Carp should be braised in brown sauce, and the intestines should be removed when cooking, otherwise it will spoil the taste.

Black herring is rich in selenium, iodine, zinc and nucleic acid, which has anti-aging and anti-cancer effects and is often used in diet therapy. Black herring contains polyunsaturated fatty acids, which can dilate blood vessels and prevent blood coagulation. Black herring is suitable for edema, hepatitis and hypertension.

It is suitable for patients with blood lipid, high cholesterol and arteriosclerosis, but not for those with weakness of spleen and stomach, deficiency of qi and blood and itchy skin. Black herring is rich in oil, which is suitable for barbecue and ensures the freshness of meat.

Crucian carp is rich in protein, which is easy to digest and absorb. It is a good source of protein for patients with liver, kidney, cardiovascular and cerebrovascular diseases.