Half a year old baby if the trace element examination or clinical symptoms of calcium deficiency, you can take oral calcium supplements, at the same time with food supplement: a. Oral calcium supplements can be oral calcium gluconate oral solution, calcium, iron and zinc granules, Diqiao calcium carbonate granules, these are children in the clinic commonly used to replenish the calcium of the drug. If the food supplement, you can give your child milk, or calcium-containing supplements, such as high calcium-containing rice flour, you can drink some bone broth in moderation, you can eat shrimp, eat eggs, green vegetables in the addition of supplemental food, the effect is very good. Second, we should also pay attention to vitamin D supplementation. If the children’s body vitamin D concentration is insufficient, eat calcium is not easy to absorb, so to supplement the vitamin D3 common supplementation, is conducive to the absorption of calcium.