Babies with calcium carbonate are prone to have digestive system reactions, may also cause hypercalcemia, if you need to use, must be under the guidance of a doctor. The baby’s gastrointestinal function is not sound enough, random supplementation of calcium carbonate may cause digestive system abnormalities, such as nausea, vomiting, constipation and other discomforts, especially babies who are usually prone to constipation, taking calcium carbonate for a long time may cause more stubborn constipation, so that the symptoms of constipation aggravated. The use of calcium carbonate may also cause hypercalcemia in babies. If calcium carbonate is used, it is recommended to monitor the levels of blood and urine calcium under the guidance of a doctor and adjust the dosage according to the results of the examination to prevent hypercalcemia. It is recommended that babies should not take calcium supplements blindly and must be under the guidance of a doctor.