Journal
NUTRIENTS
Volume 14, Issue 19, Pages -Publisher
MDPI
DOI: 10.3390/nu14194124
Keywords
maternal mortality; maternal morbidity; preeclampsia; pregnancy; vitamin D deficiency; supplementation; vitamin D; 25-hydroxyvitamin D
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Vitamin D deficiency in pregnant women is common and associated with health problems such as gestational diabetes and preeclampsia. This systematic review examines the association between 25(OH)D levels and health effects, indicating that adequate vitamin D levels play a role in reducing risk and promoting a healthy pregnancy.
Vitamin D deficiency (serum 25-hydroxyvitamin D [25(OH)D] levels <20 ng/mL in serum) is a common health condition among pregnant women, especially in high-risk groups. Evidence has connected vitamin D levels with many health-related problems during pregnancy, including gestational diabetes and preeclampsia. Because of vitamin D's effect on both mother and fetus, we systematically review the association between 25(OH)D level and its health effects. From a total of 143 studies, 43 came from PubMed, 4 from Cochrane, and 96 from EMBASE. After screening, we identified 38 studies as candidates for inclusion. Ultimately, we limited this review to 23 articles originating from 12 countries, written in English or Spanish, and conducted between 2010 and 2022. We conducted this review according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines and evaluated the quality and strength of the evidence by using the Navigation Guide Systematic Review Methodology (SING). These systematic reviews summarize findings that support vitamin D's role in reducing risks of multiple outcomes and the possible contribution of adequate vitamin D levels to a healthy pregnancy.
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