Vitamin D and Omega-3 Trial

Vitamin D and Omega-3 Trial (VITAL) (VITamin D and OmegA-3 TriaL) is a 7 year trial to run from 2010 to determine the benefits of vitamin D and Omega-3 supplements on elderly Americans. Its estimated completion date is November 2018. Vitamin D and Omega-3 Trial (VITAL) (VITamin D and OmegA-3 TriaL) is a 7 year trial to run from 2010 to determine the benefits of vitamin D and Omega-3 supplements on elderly Americans. Its estimated completion date is November 2018. It aims to enroll 20,000 participants (women 55 or over, men 50 or over) who will be randomized to one of four groups: Participants will answer annual questionnaires to determine effects on risk of cancer, heart disease, stroke, osteoporosis, diabetes, memory loss and depression.