Eating lamb generally has no side effects, and eating it properly can also replenish the body with protein and other nutrients. However, if you are allergic to mutton, you will have an allergic reaction after eating mutton, thus affecting your health. Mutton is a common food, every 100g of mutton contains 19.0g protein, 14.1g fat, 22.0μg vitamin A, 146mg phosphorus, 232mg potassium and other nutrients, proper eating generally does not have side effects, but also can supplement the body with certain nutrients, which is conducive to good health. However, it should be noted that some people may be allergic to mutton, such people should not eat mutton, otherwise after eating mutton, there may be abdominal pain, nausea, vomiting, skin itching and other allergic reactions. Although mutton has high nutritional value, but daily attention should be paid to the rationality of diet, to ensure a balanced diet, to avoid too single diet.