The correct way to supplement calcium for toddlers is to first go to the hospital to check if there is a calcium deficiency, and then according to the check, if there is a calcium deficiency you can supplement it with food or medication. Calcium supplementation should first determine whether there is a calcium deficiency, if there is no calcium deficiency, there is no need to supplement, and it is not the case that the more calcium you supplement, the better, but if there is a calcium deficiency, you need to supplement. Food supplementation of calcium, if the calcium deficiency is not particularly serious can first be supplemented through food, you can give the child to eat more calcium-rich foods, such as high-calcium milk, lean meat, soy products and so on. If the calcium deficiency is more serious, you can use medication under the guidance of a doctor, such as calcium carbonate D3 tablets, calcium supplementation about 1 month after the need to go to the hospital for review. It is recommended to often take the child outdoor sunshine, which is conducive to the absorption of calcium, do not supplement indiscriminately, and follow the doctor’s advice.