How much vitamin D do breastfed babies need? The average prenatal vitamin contains 400 IU of vitamin D, so additional supplementation should be taken daily. Pregnant women should be taking 4,000 IU of vitamin D daily to see the greatest benefits when it comes to preventing preterm labor/births and infections. Deficiency with vitamin D is also related to preeclampsia. Taking vitamin D during pregnancy invests in the well-being of your baby by supporting healthy bone development. Vitamin D is necessary for the absorption and metabolism of calcium and phosphorus. Vitamin D supports immune function, healthy cell division, and bone health. Signs of a vitamin D deficiency can include bone pain, dental deformities, increased fractures, and muscle cramps. Vitamin D helps the body to draw and absorb calcium and phosphate from what you eat, then uses it to develop strong bones and improve muscle health. Why do moms, babies and toddlers need vitamin D?
