DAYLIGHT is a clinical trial designed to test whether or not taking vitamin D is effective at lowering blood pressure. Individuals may be eligible for the trial if they have low vitamin D and a blood pressure that is considered higher than normal, but not yet high enough to require treatment with prescription medications.

We are currently still enrolling participants at the following clinical research centers:

• Cultural Wellness Center, Allina Health System, Minneapolis, Minnesota
• Hartford Hospital, Hartford, Connecticut
• Massachusetts General Hospital, Boston, Massachusetts