The Turkish Journal of Pediatrics 2013 , Vol 55 , Num 2
Effect of maternal and infant vitamin D supplementation on vitamin D levels of breastfed infants
1Departments of Pediatrics, İstanbul Faculty of Medicine, İstanbul, Turkey, 2Institute of Child Health, İstanbul University, İstanbul, Turkey, 3Departments of Biochemistry, İstanbul Faculty of Medicine, İstanbul, Turkey Buğrul F, Devecioğlu E, Özden T, Gökçay G, Ömer B. Effect of maternal and infant vitamin D supplementation on vitamin D levels of breastfed infants. Turk J Pediatr 2013; 55: 158-163.

The aim of our study was to investigate the effect of maternal vitamin D3 (400 U/day) supplementation on breastfed infants at 6 months of age. Mothers (n=96) were enrolled within 1 month after birth and assigned to the 400 IU/day regimen or no vitamin D3 supplementation for 6 months. All infants received 400 IU/day of vitamin D3 and were exclusively breastfed until 4 months of age. Of all mothers, 22.2% had vitamin D levels above 20 ng/ml initially. At the end of the study, vitamin D levels of mothers and their infants were similar in both groups. Thirteen percent of the infants in the intervention group and 20.5% in the control group had vitamin D levels below 12 ng/ml. Serum 25-hydroxyvitamin D (25(OH)D) concentrations at 6 months had increased significantly in mothers in the intervention group. Lactating mothers and their children need vitamin D supplementation but further studies are required with higher doses. Keywords : breastfed infants, lactating women, maternal vitamin D supplementation, vitamin D deficiency

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