Vitamin D level in Patients with Prediabetes

Purpose Vitamin D deficiency may cause glucose intolerance, diabetes mellitus, and metabolic syndrome. However, there are conflicting data the relationship between vitamin D levels and prediabetes in the literature. Our aim in this study is to evaluate serum 25-hydroxyvitamin D levels in prediabetic patients and to determine if vitamin D deficiency or insufficiency is a factor for developing prediabetes. Material and Method: Our study included a total of 220 patients, including 85 with isolated Impaired Fasting Glucose (IFG), 50 with isolated Impaired Glucose Tolerance (IGT), and 85 with combined IFG and IGT, and 80 healthy normoglycemic individuals similar in age, gender and BMI. Results The mean vitamin D levels between the patient group diagnosed as IGT and IFG+IGT and the control group were statistically significantly different (IGT: 11.69±6.48 ng/ml vs. control group: 16.63±9.78 ng/ml, p