Breastfeeding has been linked to greater incidences of vitamin D deficiency in infants than baby formula , due to the higher incidence of vitamin D in formula . Researchers in pregnancy have called for greater monitoring of maternal health , during and after pregnancy , in order to avoid vitamin D deficiency in infants and newborns . Their recommendation follows a case study into infant onset seizures and dilated cardiomyopathy caused by vitamin D deficiency , in this case the result of maternal vitamin deficiency following hyperemesis and insufficient insulin exposure during pregnancy .
Breastfeeding has been linked to greater incidences of vitamin D deficiency in infants than baby formula, due to the higher levels of vitamin D in formula. Researchers in Japan have called for greater monitoring of maternal health, during and after pregnancy, in order to avoid vitamin D deficiency in foetuses and newborns. Their recommendation follows a case study into infant hypocalcemic seizures and dilated cardiomyopathy caused by vitamin D deficiency, in this case the result of maternal vitamin deficiency following hyperemesis and insufficient sunlight exposure during pregnancy.