Every100g of black fish contains protein19.8g, fat10.4g, carbohydrate10.2g, calcium 57mg, phosphorus163mg, iron 0.5mg, and sugars, vitamins A and B. [Sex and taste return to meridian] Sweet, cold and nontoxic. Entering stomach meridian. [Efficacy] tonify spleen and stomach, induce diuresis and reduce swelling, and treat febrile arthralgia, beriberi, pregnancy edema, etc. [Dietotherapy Method 1] One tail of snakehead, weighing about 500 grams, and 500 grams of wax gourd, is washed, boiled in the same pot, without salt, and eaten twice after cooking. Can cure pregnancy edema [dietotherapy method 2] One tail of snakehead, remove intestines and leave scales, wash, add appropriate amount of white gourd, add a little scallion and garlic, cook together, without adding salt, eat fish and drink soup after cooking, daily 1 dose, for 3 ~ 7 days. It can treat heart edema and nutritional edema. [Dietotherapy Method 3] Slice snakehead, cook soup with 200 grams of rice bran, 50 grams of peanuts and 50 grams of rice kernels. Can be used for treating kidney inflammation, swelling and abdomen. However, this prescription is ineffective when encountering patients with severe heart failure. [Dietotherapy method 4] At the beginning of nephritis, black fish is used to cook soup, but no salt is put, and the soup is used to eat fish, which has a very good effect. [Dietotherapy method 5] A big black fish, weighing about 500 grams, has its intestines removed and scales left. Put a proper amount of garlic cloves and adzuki beans in the belly of fish, so as to fill the belly of fish, and then wrap it in thick paper for several layers. First, soak it inside and outside in clear water, then simmer it in grey fire, take out light food or dip it in vinegar, and eat it several times a day for several days, which can treat chronic nephritis. [Dietotherapy Method 6] Mix 500g of snakehead powder, the same amount of kelp powder, calcium powder and wheat germ powder with brown sugar (honey)100g evenly, add 400g of soybean paste and stir it fully, heat sesame oil in a pan, then remove the fire to cool the oil to a slight temperature, put in the mixed soybean paste and other things, and stir them evenly with a weak fire. The bean paste should be one with less salt content. This bean paste is rich in sweetness and contains soybean nutrients. It is a good supplementary source of plant-based protein, which can promote children's appetite. Not only children like it, but also adults are partial eaters, so they can try it. Therefore, this prescription has a miraculous effect in treating children's partial eclipse. Because this bean paste will not rot, it is best to eat it within three months just because it is afraid that the oil will deteriorate and change its flavor. [Diet 7] One snakehead, three garlic heads. Wash the fish, cut into pieces, stew with garlic, add a little salt or no salt, and eat. Can be used for treating liver cirrhosis. [Dietotherapy method 8] Fish 1 tail, boil tea in water, and add fish to cook. It can eliminate dampness, diuresis and edema. [Dietotherapy Method 9] Fish 1 tail, red beans100g (soaked in sorghum wine for one night), garlic head100g, put into the belly of fish, steam for 2 hours without salt, and eat lightly. It can eliminate dampness, diuresis and edema. [Dietotherapy Method 10] Fish 1 tail, put garlic cloves in the belly, seal them with paper mud, calcine them on charcoal, grind them into fine powder, 3 times a day, 2 grams each time, and take them with warm water. Treat all kinds of edema. [Dietotherapy method 11] Fish (long 15cm) is dried, calcined to ashes, and served with yellow wine before going to bed, each time10 ~15 g. It can ventilate, reduce swelling, relieve gas mass, and treat chest tightness and bloating. [Dietotherapy method 12] 500 grams of fish, removing intestinal impurities; 3 slices of ginger, 3 red dates and 7 bowls of water, boiled into 2 bowls, twice in the morning and evening, and eaten after meals, 2 ~ 3 times a week, to cure chronic tuberculosis and weakness. [Dietotherapy method 13] Fish 1 tail, appropriate amount of garlic, appropriate amount of bletilla striata, and cooking soup. Treat bleeding from intestinal hemorrhoids. [Dietotherapy Method 14] Fish 1 kg, decocting and washing the whole body of children can prevent measles. [Dietotherapy Method 15] 250 grams of fish, 500 grams of tofu, and 4 salted olives are boiled in water. Treat earache and rising internal heat. [Dietotherapy method 16] The amount of fish varies. Remove the intestines and impurities, chop earthworms and mix them into paste, fill them in the belly of the fish, steam them in water, and season them. Treat puerpera with hypogalactia. [Dietotherapy method: 17 fish 1 tail, remove intestinal impurities, fill it with Xanthium sibiricum leaves, put the fish on the leaves, add a small amount of water, simmer over slow fire, skin and bone, and eat lightly. Treat wind sores, stubborn tinea and scabies for a long time. [Dietotherapy method 18] A big fish head, 5 grams of Nanxing, 5 grams of Gastrodia elata and 5 grams of Kusnezoff monkshood, mash the fish head, add medicine and mash it. When used, it is mixed into paste and applied to the cheeks, left and right, and right and left. Treat mouth and eye deviation. [Dietotherapy Method 19] Five fish skulls are baked, 25g of Atractylodes lancea, 5g of pepper1.5g of pepper, ground into powder, and each time, take10g, and send them down with yellow wine. Treat convulsions and numbness. [Dietotherapy Method 20] Add a little borneol to fish bile, and make eye contact. Treat trachoma. [Dietotherapy method 21] Fish 1 tail, remove intestinal impurities and leave scales, fill the red beans and garlic cloves into the belly of the fish, take it as full, without adding salt, and eat it in several times after steaming. . Treat chronic nephritis or nephrotic syndrome. [Dietotherapy method 21] Fish 1 tail, remove intestinal impurities, add angelica15g, motherwort 30g, stew until the meat is rotten and boneless, remove bone spurs and dregs, add appropriate amount of brown sugar, eat meat and drink soup to treat irregular menstruation. In addition, snakehead, like aquatic organisms such as crabs, has an obvious feature that it can only be eaten alive. When snakehead dies, its nutrition will be greatly reduced, and some people with physical allergies will become sick after eating it.