HYPOVITAMINOSIS D DURING PREGNANCY: RISKS, CAUSES, AND CONSEQUENCES FOR MATERNAL-FETAL HEALTH

Abstract

Objective: To analyze the risks, causes, and consequences of hypovitaminosis D during pregnancy, highlighting its impacts on maternal and fetal health. Methodology: This is a systematic review, with a qualitative approach, of the current literature available in the scientific databases MEDLINE and the Virtual Health Library. It was conducted in September 2025 through a targeted search process using combinations of DeCS/MeSH descriptors with the use of the "and" operator between the terms, as represented: "Vitamin D" and "Pregnancy" and "Vitamina D" and "Gestação." Results and Discussion: After conducting the targeted search process for studies to be included, according to the chosen scientific databases, 14 studies were selected to contribute to the theoretical basis of this article. These were selected according to exclusion and inclusion criteria, as well as through search filters, and subsequently underwent a stage of data analysis and systematization to define the impacts of vitamin D deficiency on maternal and fetal health during pregnancy. Final Considerations: Vitamin D deficiency in pregnant women is associated with maternal complications, such as preeclampsia, gestational diabetes, postpartum hemorrhage, and miscarriage, as well as neonatal repercussions, including low birth weight, prematurity, and hyperbilirubinemia.