Three-way scaled fish can be eaten, and eating three-way scaled fish in moderation can replenish protein and other nutrients for the organism. It is recommended that people who are allergic to fish are prohibited from eating three-way scaled fish. In general, 100g of fish contains 76.7g of water, 459KJ of energy, 17.6g of protein, 4.1g of fat, 0.5g of carbohydrates, 25.0μg of vitamin A, 2.70mg of nicotinic acid, 2.08mg of zinc, 334mg of potassium, and 45.7% of monounsaturated fatty acids and other nutrients in the fat of fish, so it is usually possible to eat fish in moderation to replenish nutrients needed by the organism. Eating a moderate amount of fish can replenish the body with the nutrients it needs. If you are allergic to fish, avoid eating fish to prevent allergic reactions such as itching, rash, difficulty breathing, diarrhea, and vomiting after eating fish. If the body is not allergic to fish, it can be consumed in moderation, but it is not advisable to consume too much fish.