The Effect of Vitamin D Supplementation on Glucose Metabolism in Non-Diabetic African American Adults
Completed · Not applicable
Conditions studied: Type 2 Diabetes
In brief
Type 2 diabetes is more common among African Americans than Caucasians. African Americans are also at a higher risk for lower levels of vitamin D compared to other ethnic groups. The investigators don't yet know if there is a connection between not having enough vitamin D and type 2 diabetes in African Americans. Researchers have found that the less vitamin D Caucasians had the higher the chance they would have type 2 diabetes but it is less clear if this is the case for African Americans. The investigators want to better understand how vitamin D status and diabetes risk are linked in African Americans. Also, the investigators want to see if supplementation with vitamin D will improve your blood pressure, blood sugar, \& insulin. All of these are in some way related to diabetes. The investigators want to measure changes in blood sugar \& blood pressure in people who do not have diabetes with the hope of learning new information to help treat those that do have diabetes. The investigators hypothesize that vitamin D status is related to diabetes risk measured by hemoglobin A1c (a test of glucose level over time), fasting glucose and insulin in non-diabetic African American adults and that body weight status may affect vitamin D status in response to vitamin D supplements compared to placebo.
Key facts
- Study ID
- NCT01141192
- Run by
- Augusta University
- People needed
- 48
- Starts
- 2010-01-01
- Expected to finish
- 2010-05-01
- Last updated by the study team
- 2010-06-10
Who can join
Age: 19 and older, up to 60. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- African American by self-report
- In good health
You may not qualify if…
- Diagnosis of diabetes
- Health problems/medication affecting calcium and/or vitamin D metabolism
- Current use of vitamin/mineral/herbal/nutritional supplements
- Inability to swallow pills
- Pregnancy
Where it is running
- Medical College of Georgia — Augusta, Georgia, United States
Full record on ClinicalTrials.gov
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