Study on the correlation between Vitamin D and HbA1c in type 2 diabetes mellitus

  • Dr. A Ponnambalam Associate Professor, Department of General Medicine, SVMCH&RC, Pondicherry, India
  • Dr. M Arun Assistant Professor, Department of General Medicine, SVMCH&RC, Pondicherry, India
  • Dr. G. Prabhu Professor, Department of General Medicine, SVMCH&RC, Pondicherry, India
Keywords: Diabetes mellitus, Glycated haemoglobin, Glycemic control, Vitamin D


Background: Type 2 diabetes mellitus (DM) is associated with increased morbidity and mortality due to the development of complications, especially due to poor glycemic control. Besides its role in calcium homeostasis, Vitamin D has been involved in the pathophysiology as well as glycemic control of type 2 DM.

Methods: 100 patients diagnosed with type 2 DM were included. Vitamin D levels along with glycosylated haemoglobin were measured in all the individuals.

Results: Vitamin D deficiency was observed in 48% of the patients. Vitamin D levels were not associated with markers of glycemic control (HbA1c).

Conclusions: Hypovitaminosis D was observed nearly in half of the patients with type 2 diabetes, suggesting a potential for vitamin D supplementation in type 2 DM patients.


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DOI: 10.17511/ijmrr.2021.i04.03
Published: 2021-08-27
How to Cite
Dr. A Ponnambalam, Dr. M Arun, Dr. G. Prabhu. Study on the correlation between Vitamin D and HbA1c in type 2 diabetes mellitus. Int J Med Res Rev [Internet]. 2021Aug.27 [cited 2024May20];9(4):219-24. Available from:
Original Article