All literatures, including: observational studies, quasirandomized
trials and prospective randomized controlled
trials (RCTs) evaluating multiple micronutrient
supplementation in women during pregnancy, published
in English language, were included. There were no
limits on gestational age at the time of enrolment in the
study and the duration of supplementation. Other than
the assessment of Small for Gestational Age and
neonatal mortality, we did not specifically evaluate
minor adverse effects of the supplements such as nausea
and vomiting among the mothers and newborns.