Vitamin k shows promise for aching knees in small trial
NCT ID NCT05505552
First seen Nov 01, 2025 · Last updated Jun 05, 2026 · Updated 34 times
Summary
This pilot study tested whether taking a daily vitamin K supplement for 6 months could improve knee function in 37 adults aged 50+ with mild-to-moderate knee osteoarthritis and low vitamin K levels. Participants were randomly assigned to receive either vitamin K or a placebo. The main goal was to gather data for a larger future study, including how well people stick with the treatment and whether vitamin K affects markers of joint health.
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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
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Locations
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Tufts University
Boston, Massachusetts, 02111, United States
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UMass Memorial Medical Center
Worcester, Massachusetts, 01605, United States
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University of North Carolina Chapel Hill
Chapel Hill, North Carolina, 27599, United States
Conditions
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