- Are you between 21 or older?
- Do you have type 2 diabetes?
- Are you feeling blue or worry a lot?
- Are you willing to take a vitamin D supplement weekly for 6 months?
- Are you willing to limit intake of supplements outside of the study that have vitamin D and calcium to no more than what is currently recommended?
- If you answered YES to all questions, you may qualify for the Sunshine 2 Study.