Eating supplemental food diarrhea is mostly related to indigestion, food allergy and gastrointestinal disorders, etc. It can be relieved by stopping the intake of the food or taking oral medication such as pediatric antidiabetic granules, loratadine tablets, and montelukast, as prescribed by the doctor. 1. Indigestion: The gastrointestinal function of infants and young children is not yet sound, and eating too much when adding complementary foods for the first time will cause gastrointestinal discomfort, leading to indigestion and diarrhea symptoms. Under the guidance of the doctor, you can give the child some drugs to help digestion, such as children’s food granules, to be added after the condition improves supplemental food. 2. Food allergy: allergy-prone children, there may be an allergic reaction to the addition of complementary foods, resulting in diarrhea, if it is a mild allergy, to stop the intake of such food, to be discharged from the body after the allergic symptoms can be relieved, but if the child in addition to diarrhea, accompanied by a rash, itchy skin and other symptoms, you need to comply with the doctor’s instructions to take loratadine tablets and other antiallergic drug treatment. 3. Gastrointestinal disorders: If the addition of complementary foods is not appropriate, such as food is too cold, may cause gastrointestinal dysfunction, diarrhea symptoms will occur. You can follow the doctor’s instructions to apply montelukast, bifidobacteria and other drugs to protect the gastrointestinal mucosa and regulate the gastrointestinal flora to improve the symptoms of diarrhea. If you have diarrhea after taking food supplements, it is recommended that you seek medical attention to identify the cause of the diarrhea, and then take the medication as prescribed by your doctor. The above medications need to be evaluated by a doctor, do not use drugs blindly.