Calcium tablets for children are best taken between meals or about half an hour after dinner to best facilitate effective digestion and absorption of calcium tablets by children. For children, the absorption rate of calcium is higher when they are hungry, so it is recommended to take calcium supplements between meals. You should also ensure that your child has one hour of outdoor activity so that your child receives ultraviolet radiation, which is conducive to converting vitamin D into an activating factor, thus facilitating the digestion and absorption of calcium supplements. In addition, as the body goes to sleep at night and no longer eats, part of the calcium will be lost with urine. Therefore, calcium supplementation half an hour after dinner can provide a calcium source for calcium regulation at night, and at the same time can play a sedative role, which is conducive to improving children’s sleep quality and promoting brain development. In daily life, children can take calcium supplements through food, such as milk, cheese and other dairy products contain higher calcium rate and better absorption rate, it is recommended to develop the habit of eating dairy products since childhood.