Assessment of Vitamin D Supplementation on Glycemic Control in Type 2 Diabetes Patients in Urban India

Dr. Shah Dhyey Sanjaykumar, Dr. Vaibhav Kalane, Dr. Rakesh Shanigaram

Abstract: This randomized controlled trial evaluates the impact of vitamin D supplementation on glycemic control among type 2 diabetes patients in urban India, where vitamin D deficiency is prevalent. A total of 100 participants aged 35 - 65 years with HbA1c >7% and serum 25 - hydroxyvitamin D <20 ng/mL were recruited from an urban hospital in Mumbai between January 2025 and June 2025. Participants were randomized into an intervention group (n=50) receiving 2000 IU of vitamin D daily and a placebo group (n=50) for six months. Primary outcomes included changes in HbA1c, fasting blood glucose, and serum vitamin D levels. The intervention group exhibited a statistically significant reduction in HbA1c by 0.9% (p=0.04), fasting glucose by 12 mg/dL (p=0.03), and an increase in vitamin D levels from 18 ng/mL to 32 ng/mL (p<0.01). No significant changes were observed in the placebo group. These findings suggest that vitamin D supplementation could serve as an effective adjunct therapy for glycemic control in vitamin D - deficient type 2 diabetes patients, though larger studies are needed to confirm these results.

Keywords: Vitamin D, Type 2 Diabetes, Glycemic Control, Supplementation, Urban India

How to Cite?: Dr. Shah Dhyey Sanjaykumar, Dr. Vaibhav Kalane, Dr. Rakesh Shanigaram, "Assessment of Vitamin D Supplementation on Glycemic Control in Type 2 Diabetes Patients in Urban India", Volume 14 Issue 7, July 2025, International Journal of Science and Research (IJSR), Pages: 315-316, https://www.ijsr.net/getabstract.php?paperid=SR25702225217, DOI: https://dx.doi.org/10.21275/SR25702225217