Carassius auratus soup is tender and sweet, contains a lot of minerals such as iron, calcium and phosphorus, and is rich in nutrition, including protein, fat, vitamins A and B, etc. In addition, the content of protein in every100g of black crucian carp is as high as 20g, which is second only to prawn, and it is easy to digest and absorb, so it can enhance the resistance if eaten frequently. Secondly, crucian carp has the medicinal value of invigorating spleen and promoting diuresis, promoting blood circulation and dredging collaterals, harmonizing the middle energizer to stimulate appetite, warming the middle energizer and lowering qi, and has a good nourishing and dietetic effect on patients with kidney and spleen weakness, edema, ulcer, tracheitis, asthma and diabetes; For postpartum women, you can replenish deficiency and milk.