Calcium supplements for infants are usually not chosen as tablets, and it is recommended to choose granular calcium or liquid calcium suitable for infants, such as calcium carbonate granules, calcium gluconate oral solution and so on. If infants do have calcium deficiency, they can take calcium supplements under the guidance of doctors. But generally do not choose tablets. Common calcium supplements suitable for infants are granules and liquid formulations, such as calcium carbonate granules or calcium gluconate oral solution. These are relatively safe for infants, less irritating to the stomach and intestines, and easily absorbed by the stomach and intestines, and are also more easily accepted by infants. If infants need to take calcium supplements, it is recommended to seek medical advice and follow the doctor’s advice to choose calcium supplements suitable for infants, and it is not recommended to blindly give calcium supplements to infants on their own.