Iron and folic acid supplementation--given prenatally during a time of critical neurologic development -- can improve children's later intellectual functioning, a randomized trial conducted in Nepal found.
On the Universal Nonverbal Intelligence Test, children whose mothers had received the iron and folic acid supplements had a mean score of 51.7, while those in a control group scored 48.2, which gave an adjusted mean difference of 2.38 points (95 percent CI 0.06 to 4.70, P=0.04), according to Parul Christian, DrPH, of Johns Hopkins in Baltimore, and colleagues.
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