Association of Vitamin D Deficiency with Gestational Diabetes Mellitus: A Prospective Observational Study.
DOI:
https://doi.org/10.51168/sjhrafrica.v7i3.2560Keywords:
Vitamin D deficiency, gestational diabetes mellitus, pregnancy, insulin resistance, maternal healthAbstract
Background:
Vitamin D deficiency is increasingly recognized as a potential risk factor for metabolic disorders such as gestational diabetes mellitus (GDM). It plays a role in glucose metabolism through its effects on insulin secretion and sensitivity.
Objective:
To evaluate the association between maternal vitamin D deficiency and gestational diabetes mellitus.
Methods:
This prospective observational study was conducted over four months among 100 pregnant women attending antenatal clinics at a tertiary care hospital. Women aged 18–40 years between 24–28 weeks of gestation were included. Serum 25-hydroxyvitamin D levels were measured, and GDM was diagnosed using the oral glucose tolerance test. Statistical analysis was performed using the chi-square test.
Results:
The mean age of participants was approximately 26.4 ± 4.2 years. Vitamin D deficiency was observed in 60% of participants, while 30% were diagnosed with GDM. Among vitamin D-deficient women, 40% had GDM compared to 15% in those with sufficient levels. A statistically significant association was found (p = 0.014).
Conclusion:
Vitamin D deficiency is significantly associated with increased risk of GDM.
Recommendation:
Routine screening and early supplementation of vitamin D during pregnancy may help reduce the risk of GDM.
References
Correa P, Bennett H, Jemutai N, Hanna F. Vitamin D Deficiency and Risk of Gestational Diabetes Mellitus in Western Countries : A Scoping Review. Nutrients. 2025;17(2429):1-15. https://doi.org/10.3390/nu17152429
Mantoo AJ, Jahan A, Younus Z, Hamid U. Relationship of vitamin D deficiency and gestational diabetes mellitus in pregnant women. Int J Reprod Contraception, Obstet Gynecol. 2024;13(8):2042-5. https://doi.org/10.18203/2320-1770.ijrcog20242067
Sattar Q, Syed W. Association of Vitamin D Deficiency with Gestational Diabetes. INDUS J Biosci Res. 2025;3(5):628-32. https://doi.org/10.70749/ijbr.v3i5.1348
Nargesi S, Ghorbani A, Shirzadpour E. A systematic review and meta-analysis of the association between vitamin D deficiency and gestational diabetes mellitus. Biomed Res Ther. 2017;5(3):2078-95. https://doi.org/10.15419/bmrat.v5i3.422
Harshinee N, Preethi B, Washington JK. Association Between First-Trimester Vitamin D Levels and Gestational Diabetes Mellitus : A Prospective Observational Study From South India. Cureus. 2025;17(10):1-12.
Lin C, Liu H. Relationship between vitamin D deficiency and gestational diabetes : a narrative review. Front Endocrinol (Lausanne). 2024;15(December):1-10. https://doi.org/10.3389/fendo.2024.1504930
Dragomir RE, Mutu DEG, Sima RM, Toader OD, Stănculescu R V. The Impact of Vitamin D Deficiency on Gestational Diabetes Mellitus Risk : A Retrospective Study. Cureus. 2024;16(7):1-10. https://doi.org/10.7759/cureus.65037
Halldorsson TI, Birgisdottir BE, Ingibjorg T. Vitamin D status and association with gestational diabetes mellitus in a pregnant cohort in Iceland. Food Nutr. 2021;65(5574):1-7. https://doi.org/10.29219/fnr.v65.5574
Yin W, Tao R, Hu H, Zhang Y, Jiang X, Zhang M, et al. The association of vitamin D status and supplementation during pregnancy with gestational diabetes mellitus : a Chinese prospective birth cohort study. Am J Clin Nutr [Internet]. 2020;111(1):122-30.https://doi.org/10.1093/ajcn/nqz260
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Binod Bihari Mishra, Manasi Mohapatra, Ankita Pattanaik

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
















