Children grow taller, choose calcium tablets need to choose quality assurance of calcium tablets, calcium content is appropriate, at the same time pay attention to vitamin D supplementation. 1. Quality assurance: you need to choose regular manufacturers, regular channels to buy calcium tablets, such as calcium carbonate chewable tablets, Vitamin D2 calcium phosphate tablets and so on. 2. Calcium content is appropriate: children in different stages of growth, children need different levels of calcium. For example, the daily physiological need before the age of 1 is 250mg. 3. Supplemental vitamin D: Supplemental vitamin D is essential for the absorption of calcium in children, which can greatly improve the absorption rate of calcium. Children’s growth is affected by many factors, it is recommended that if the height is abnormal, timely medical treatment, consult a professional doctor, not blindly supplement calcium. At the same time should also encourage children to do more outdoor exercise, pay attention to balanced diet.