Can daily supplements ward off infections? large study investigates

NCT ID NCT01758081

First seen Sep 30, 2025 · Last updated May 16, 2026 · Updated 25 times

Summary

This study looks at whether taking vitamin D and omega-3 supplements can reduce the risk of infections like colds, flu, and urinary tract infections in healthy adults. It involves over 25,000 participants from a larger heart and cancer prevention trial. Researchers will also measure a protein linked to immune function. The goal is to learn more, not to provide a treatment.

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Contacts and locations

Locations

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02215, United States

Conditions

Explore the condition pages connected to this study.