VITamin D and OmegA-3 TriaL: Effects on Bone Structure and Architecture (VITAL)

Completed · Not applicable · Has a placebo group

Conditions studied: Bone Density, Body Composition, Bone Health

In brief

The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) 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 fish oil (1 gram of omega-3 fatty acids) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. This ancillary study is being conducted among a sub-cohort of 771 participants in VITAL and will test the efficacy and safety of high-dose vitamin D supplementation vs. placebo on skeletal health and body composition.

Key facts

Study ID
NCT01747447
Run by
Brigham and Women's Hospital
People needed
771
Starts
2012-08-01
Expected to finish
2023-08-02
Last updated by the study team
2026-04-28

Who can join

Age: 50 and older. Sex: any. Healthy volunteers: accepted.

Where it is running

Full record on ClinicalTrials.gov

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