The vitamin D and type 2 diabetes (D2d) study will be a randomized controlled trial that will test whether daily vitamin D supplementation affects how the body uses glucose (sugar) in people with pre-diabetes (people who have higher than normal blood glucose level but not high enough to meet the diagnosis of diabetes). There are over 79 million Americans with pre-diabetes that are at increased risk for developing type 2 diabetes. Lifestyle changes, such as healthy eating, exercise and weight loss, can decrease the chances of developing diabetes. However, many people still develop diabetes despite efforts at changing their lifestyle. The D2d study will be a clinical trial that will enroll participants at risk for diabetes who will be followed for development of diabetes.
Additional information and a complete list of clinical site locations will be available at www.D2dstudy.org .