THE EFFECT OF VITAMIN D SUPPLEMENTATION ON HBA1C IN TYPE 2 DIABETIC PATIENT IN DIABETIC CENTERS IN TAIF CITY, SAUDI ARABIA

Introduction: Type 2 diabetes mellitus has a high prevalence rate among our population in Saudi Arabia. Vitamin D deficiency was more familiar among T2DM patients in different populations. Aim of work: This study aims to assess the effect of vitamin D supplementation on HbA1c in type 2 diabetic patient. Methodology: A retrospective study conducted in diabetic centres in Taif city, Saudi Arabia in the past year (January 2018 to December 2018). The reviewed data was socio-demographic, HbA1c, vitamin D supplementation. SPSS program version 22 was used for data analysis. Results: 250 T2DM patients participated in the present study; half of them had vitamin D deficiency (