Fish contains a lot of protein, minerals and other nutrients, men can eat fish to supplement the body with protein and other nutrients, but it is not recommended for people allergic to fish to avoid nausea, itching and other symptoms. Fish is a common food, every 100g of fish contains 16.6g of protein, 224mg of phosphorus, 58mg of calcium and other trace elements, which can replenish the body’s energy, promote the development of the body, and maintain good health. However, if you have an allergic reaction to fish, it is not recommended to eat fish to avoid symptoms such as nausea, itchy skin, and in severe cases of allergic reaction, shock may occur. In addition, parasitic infections, such as liver flukes, may occur if the fish is not cooked when eaten. In daily life, you can eat fish appropriately to replenish nutrients for your body, but if an allergic reaction occurs when eating fish, you should stop eating it immediately and go to a regular hospital.