Fish is a common food, not a drug, and does not have any therapeutic effect on the human body. Eating in moderation can provide the body with the nutrients contained in fish. Fish contains protein, energy, cholesterol, sulfur, phosphorus and other components are high, containing other nutrients are fat, magnesium, potassium, zinc, copper, vitamin E, niacin, lysine, valine, histidine and other components, so the above nutrients can be eaten in moderation for the body to provide some of the required nutrients to a certain extent to maintain normal life activities. However, fish is a food, not a drug, and has not been proven to have any therapeutic effect, so there is no therapeutic effect on disease. Although fish has more nutrients, excessive consumption may cause gastrointestinal discomfort.