Systematic review finds zinc supplementation improves pregnancy outcomes in healthy women and high-risk groups, suggesting potential benefits yet limited by bias risks.
Key Points
Zinc supplementation alone results in improved serum zinc levels during the second and third trimesters, and benefits such as larger neonatal birth size.
Analysis includes 77 randomized controlled trials assessing various characteristics and participant subgroups, highlighting significant findings.
Qualitative synthesis indicates potential advantages for high-risk groups, although combination therapies showed no added benefits against standard treatments.
Highlights the necessity for further research to solidify the implications of zinc's role in prenatal care and infant health.