Vitamin D and Omega-3 Trial (VITAL)

Research Group
Nutritional Science
Brigham and Women's Hospital
Active, not recruiting ID
For more information, see NCT01169259
The VITamin D and OmegA-3 TriaL (VITAL) is a randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish oil, 1 gram) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. The 5-year intervention phase (study pill-taking, median 5.3 years) has ended; post-intervention observational follow-up of study participants is ongoing.
vitamin D3, omega-3 fatty acids (fish oil), Vitamin D3 placebo, Fish oil placebo
Cancer, Cardiovascular Disease
JoAnn E. Manson, MD, DrPH, Julie E. Buring, ScD

See list of participating sites