Zinc Supplementation Initiated Prior to or During Pregnancy Modestly Impacted Maternal Status and High Prevalence of Hypozincemia in Pregnancy and Lactation: The Women First Preconception Maternal Nutrition Trial.

These results were nominally significant (i.e., not adjusting for multiple comparisons) and were primarily driven by Pakistan, although the direction of effect (i.e., lower Z -scores for mothers with hypozincemia) was seen in Guatemala and India, as well.

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