Vitamin D supplementation in patients with type 2 diabetes

Abstract

The purpose of the study is to evaluate if supplementation with vitamin D in a dose of 40.000 IU per week will result in improved metabolic control in patients with type 2 diabetes. We will include 70 patients with type 2 diabetes. They will be treated with 40.000 IU cholecalciferol per week (or placebo) for 6 months. Metabolic control will be evaluated with measurements of glycated hemoglobin, home glucose measurements, and fasting blod glucose and serum insulin. Only subjects using insulin at bedtime combined with metformin during the day will be included.