Children’s calcium supplementation should be dietary supplementation, dietary supplementation is safer, specifically including the following: 1, eat more food containing calcium or can promote calcium absorption: for example, milk, human milk, milk, goat milk, yogurt, cheese is richer in calcium, the absorption is also more adequate; 2, vegetables, fruits: such as spinach, leeks, bananas, apples, pineapples, etc., these fruits and vegetables contain calcium is relatively high; 3, beans: the nutritional value of beans is very High, most beans contain a considerable amount of calcium, such as soybeans, black beans, green beans, flower beans, etc., but after one year old infants and children can only drink soy milk, and prevent too much at a time to avoid protein allergies; 4, seafood category: such as shrimp skin, nori, kelp, fish, crab, etc. contain very high calcium, and the protein content is also very high; 5, animal liver, egg yolk is rich in vitamin D which can promote the absorption of calcium.