Calcium supplement for one year old babies can choose regular calcium supplements under doctor’s guidance, such as calcium carbonate D3 granules and so on. One year old baby if there are symptoms of calcium deficiency, such as sleep is not solid, sweating, rib edge ectropion and other symptoms can be under the guidance of the doctor to supplement calcium, in the calcium supplement must be done before the blood calcium test, calcium deficiency can be supplemented, if not calcium deficiency does not require additional supplementation, supplementation of calcium is not the more the better. If the one-year-old baby clearly lack of calcium can be used under the guidance of the doctor calcium carbonate D3 granules and other regular calcium supplements, need to pay attention to the side effects of the drug, such as loss of appetite, constipation and other uncomfortable symptoms. It is recommended to pay attention to balanced nutrition, can increase the intake of calcium-rich foods, regular physical examination of the child, and follow the doctor’s instructions.