Vitamin d deficiency common in heart failure patients – but does supplementation help?
NCT ID NCT01993537
First seen May 10, 2026 · Last updated May 15, 2026 · Updated 1 time
Summary
This study looked at how common vitamin D deficiency is in people with chronic heart failure and whether taking vitamin D supplements improves their health. 91 adults with heart failure were divided into groups based on their vitamin D levels. Those with severe deficiency were randomly assigned to receive vitamin D or no treatment. Researchers tracked hospitalizations and deaths over 26 months to see if supplements made a difference.
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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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Locations
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The University of Ottawa Heart Institute
Ottawa, Ontario, K1Y 4W7, Canada
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