To 8 months baby calcium supplement can generally be supplemented through food and drugs, specific analysis is as follows: 1. food supplement: 8 months baby can add supplemental food is conducive to the overall intake of nutrients, you can give the baby to eat puree, shrimp puree, fish puree and other foods, you can also choose high calcium milk powder. 2. Drug supplement: if the baby calcium deficiency is more serious, need to use drugs under the guidance of a doctor to supplement calcium, such as calcium carbonate D3 tablets, need to pay attention to the side effects of drugs, such as constipation, abdominal pain, allergic history of the product is prohibited. It is recommended to take the baby often outdoor sunshine, conducive to the absorption of calcium, and regularly go to the hospital for examination.