Knifefish is rich in nutritional value, containing proteins, vitamins and minerals; however, it does not possess any special effects. Every 100g of swordfish contains 17.7g of protein, as well as 29.0μg of vitamin A, 2.80mg of niacin and other vitamins, and phosphorus, potassium, magnesium, selenium, copper, manganese and other minerals, which can provide the human body with the required substances. Among them, the protein of swordfish belongs to high-quality animal protein, with high absorption rate, and contains a complete range of eight essential amino acids for the human body. It helps to form or repair human tissues. The cholesterol contained in swordfish (about 76mg of cholesterol per 100g) is an important part of the human body, but too much cholesterol can be harmful to the human body, so it is necessary to eat swordfish in moderation. Although swordfish is rich in nutritional value, it does not have any special effects as it cannot cure diseases. It is recommended that daily cooking should be light, avoiding too much spiciness, and also avoiding overeating.