At present, there are many kinds of calcium agents for children, such as calcium carbonate, calcium gluconate and calcium lactate. Calcium carbonate has high calcium content and better absorption effect. Therefore, it is better for children to supplement calcium carbonate. You can choose granules, effervescent agents or tablets according to your child's age.

Children should also supplement vitamin D while supplementing calcium. Vitamin D can promote children's absorption of calcium. Usually, letting children do more outdoor activities in the sun will also promote the production of their own vitamin D, which is conducive to the absorption of calcium.

If the child lacks calcium, it will cause the child to be restless, crying, night terrors, abnormal bone development, and even lead to the child's growth and development backwardness.