Fish, as a common food, does not have the efficacy of drugs, the benefit is that it can provide the human body with high-quality protein, high-quality fat and other minerals such as calcium, phosphorus and potassium. Fish is rich in nutrients, take carp for example, every 100 grams of carp contains 109 calories, of which 17.6 grams of protein, 0.5 grams of carbohydrates, 4.09 grams of fat, 84 milligrams of cholesterol, 50 milligrams of calcium, 1 milligrams of iron, 334 milligrams of potassium. Proteins in fish are animal proteins with high absorption rate and reasonable structure, containing eight essential amino acids required by the human body, which is a good source of protein. Fish fat is also dominated by polyunsaturated fatty acids and monounsaturated fatty acids, which are relatively high quality sources of fatty acids. Appropriate intake of fish is conducive to supplementing these essential fatty acids, which is beneficial to cardiovascular and cerebrovascular health. Fish also contains high levels of calcium, magnesium, potassium and other minerals, all of which are beneficial to the human body. At the same time, fish is not high in calories and is very satiating, making it ideal for fitness enthusiasts and people with special needs such as diabetes. However, people who are allergic to fish are not suitable to eat fish. Fish does not have the effect of medicine, the body is not feeling well, you should seek medical attention as soon as possible, not to lose time.