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Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853-6301
* Clinical Epidemiology and Biostatistics Unit
Biochemistry Laboratory, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55001, Indonesia
** Division of Human Nutrition, Department of International Health, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD 21205
For regions where vitamin A deficiency is common, high dose vitamin A supplementation of lactating mothers is currently recommended, but the effects of this intervention have not been carefully evaluated. We conducted a randomized, double-blind trial in which 153 Indonesian mothers 13 wk postpartum received either a capsule containing 312 µmol of vitamin A as retinyl palmitate or a placebo. Mothers' serum retinol concentrations in the vitamin A group tended to be lower than in the placebo group at baseline but higher at 3 mo postpartum (1.39 vs. 1.24 µmol/L, P = 0.03) and 6 mo postpartum (1.23 vs. 1.08 µmol/L, P < 0.01). The milk retinol concentrations of the vitamin A group were higher than those of the placebo group by 0.48 to 1.18 µmol/L at 18 mo postpartum (P < 0.05). Among the infants at 6 mo of age, the prevalences of low serum retinol concentration (<0.52 µmol/L) were 36 and 15% in the placebo and vitamin A groups, respectively (P < 0.005), and the prevalences of low vitamin A stores (assessed by relative dose response) were 23 and 10%, respectively (P < 0.03). High dose vitamin A supplementation of lactating mothers is an efficacious way to improve the vitamin A status of both mother and breast-fed infant.
KEY WORDS: vitamin A women lactation breast milk infants
1 Parts of this report were presented at Nutrient Regulation during Pregnancy, Lactation and Infant Growth, a conference of the International Society for Research of Human Milk and Lactation, August 912, 1992, Stockholm, Sweden and in abstract form [Stoltzfus, R. J., Hakimi, H., Miller, K. W. and Rasmussen, K. M. (1992) High-dose vitamin A supplementation of lactating women in rural Central Java, Indonesia improves mother's and infant's vitamin A status. FASEB J. 6: A1497 (abs.)].
2 Supported by a grant from the Thrasher Research Fund and a National Science Foundation Graduate Fellowship to Rebecca J. Stoltzfus.
3 To whom correspondence should be addressed at the current address: Division of Human Nutrition, Department of International Health, School of Hygiene and Public Health, Johns Hopkins University, 615 N. Wolfe St., Baltimore, MD 21205.
Manuscript received 11 August 1992. Revision accepted 9 December 1992.
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