Worldwide, 250 million low birth weight babies are born each year. Ninety percent of these infants are born in developing countries where maternal micronutrient deficiencies are widespread. "Our research work is aimed at trying to discern the right combinations of micronutrients that will maximize the health benefits to both mother and child," explained Parul Christian, DrPH, principal investigator of the study and associate research professor with CHN and the School's Department of International Health. "You have to consider the potential for negative interactions between micronutrients. Our study shows that more nutrients are not necessarily better."
For the study, CHN researchers gave 4,926 pregnant Nepalese women one of the following daily supplements: folic acid, folic acid-iron, folic acid-iron-zinc or a multiple micronutrient supplement containing folic acid, iron and zinc and 11 other micronutrients. All participants received vitamin A, with a control group receiving vitamin A alone. Previous studies by CHN researchers showed that vitamin A reduces pregnancy-related deaths in Nepal.
The findings showed that supplementation with folic-acid iron reduced the incidence of low birth weight by 16 percent and the multiple micronutrient supplements reduced low birth weight by 14 percent. Folic acid-iron-zinc supplementation and folic acid supplementation alone had no significant effect on birth size.
Dr. Christian said the study provides important new information in the pursuit of a universal antenatal supplement in both the de
Contact: Tim Parsons
Johns Hopkins University Bloomberg School of Public Health