Some flat fish are more suitable for patients, and people with cold and heat systems can eat them, such as crucian carp, which has the functions of clearing away heat and toxic materials, invigorating qi and spleen, reducing swelling and promoting diuresis. Silver carp and grass carp are good products for warming the stomach, warming the middle warmer, benefiting qi and tonifying deficiency. Black herring has the functions of nourishing liver and kidney, nourishing qi and blood, invigorating spleen and regulating stomach. Black herring can not only invigorate qi and nourish stomach, but also contain zinc with anticancer effect.
Fish is rich in protein, minerals and inorganic salts, as well as vitamins and trace elements. Fish has high nutritional value, but low fat content, which is easier to absorb and digest and can reduce the burden on the stomach. Its nutrients can be absorbed by human body about 96%, which is more suitable for patients than chicken, pork and other meats. Eating fish after tongue cancer surgery can enhance immunity and help patients recover quickly. However, patients with tongue cancer had better not eat some fish with many small thorns, so as to avoid eating by mistake, scratching blood vessels and causing serious problems such as bleeding.