Calcium deficiency in children is what we call vitamin D deficiency. Vitamin D promotes the absorption of calcium, so a lack of vitamin D can cause calcium deficiency. Calcium deficiency will affect the child’s bone development, thus affecting the child’s growth and development, so it must cause parents to pay sufficient attention. Once the child shows signs of calcium deficiency, the first thing to do is to take vitamin D supplements, give the child more sunlight, and at the same time take appropriate calcium tablets, commonly used are calcium carbonate and lactated calcium. In addition to the above treatment, calcium can also be supplemented by means of dietary supplements. First of all, give your child a certain amount of milk, whether it is breast milk or milk, which is rich in calcium and easily absorbed. Calcium-rich foods include shrimp, soy products, lean meat, beans, egg yolk, sesame, hawthorn and deep-sea fish, cabbage, celery, kale, kelp, nori, etc. So usually eat more of these calcium-rich foods for calcium supplements are very effective. Generally calcium-rich fruits are not very common, so you don’t need to eat too much fruit for calcium supplementation. Calcium deficiency in children, on the basis of calcium supplementation, we must remember to supplement vitamin D on time, otherwise the supplementation of more calcium is not absorbed, and thus can not fundamentally alleviate the symptoms of calcium deficiency in children.