Under normal circumstances, babies can take calcium supplements 6 months after birth. If the baby is weak (such as preterm babies and low birth weight babies), it is necessary to take calcium supplements earlier, and the specific time for calcium supplements depends on the baby’s condition. In general, the newborn’s body has a certain amount of calcium stored in the breast milk within 6 months after birth can basically meet the baby’s calcium needs, so generally from 6 months after calcium supplementation. Weak babies (such as preterm babies, low birth weight babies) are more likely to have a calcium deficiency, so it may be necessary to take calcium supplements 1 to 2 weeks after birth, calcium supplements need to be supplemented at the same time vitamin D, which is more conducive to calcium absorption. The exact timing of calcium supplementation depends on the baby’s condition. Calcium deficiency in babies tends to affect their growth and development, it is recommended that parents take their babies outdoors in the sun more often, do not blindly give your child calcium supplements to avoid causing adverse reactions, should be under the guidance of the pediatrician to take calcium supplements.