Does vitamin d affect COVID-19 severity? large study investigates
NCT ID NCT04394390
First seen Feb 05, 2026 · Last updated May 23, 2026 · Updated 14 times
Summary
This completed study looked at 1100 COVID-19 patients in Turkey to see if vitamin D levels in the blood were linked to how severe their illness became. Researchers measured vitamin D levels and compared them to disease severity. The study did not give any treatment, only observed existing vitamin D levels.
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This is a summary of
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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.
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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Bursa City Hospital
Bursa, Dogankoy, Turkey (Türkiye)
Conditions
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