Can chocolate pills and vitamins keep you healthy? major study investigates

NCT ID NCT02422745

First seen Nov 01, 2025 · Last updated Apr 14, 2026 · Updated 19 times

Summary

This large study aimed to find out if taking daily cocoa extract or a standard multivitamin could help prevent heart disease and cancer in older adults. Over 21,000 men aged 60+ and women aged 65+ were randomly assigned to take either the real supplements or look-alike placebo pills for several years. Researchers tracked whether these common dietary supplements reduced the risk of serious health events like heart attacks, strokes, and new cancer diagnoses.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Locations

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02215, United States

  • Fred Hutchinson Cancer Research Center

    Seattle, Washington, 98109, United States

Conditions

Explore the condition pages connected to this study.