[Preprint] RCT: Vitamin D supplements did not prevent Covid-19 or other acute respiratory infections.

Vitamin D Supplements for Prevention of Covid-19 or other Acute Respiratory Infections: a Phase 3 Randomized Controlled Trial (CORONAVIT) – medRxiv

Related:

M-A: Low vitamin D levels do not aggravate COVID-19 risk or death, and vitamin D supplementation does not improve outcomes in hospitalized patients with COVID-19.

In a Mendelian randomization study, researchers found no genetic evidence to support an association between Vitamin D levels and COVID-19 susceptibility, severity, or hospitalization.

Living systematic review: The evidence is insufficient to determine the benefits and harms of vitamin D supplementation as a treatment of COVID‐19.

RCT: Vitamin D3 does not improve outcomes in hospitalized patients with moderate to severe COVID-19

Commentary on Twitter (thread – click for more)

CORONAVIT trial (vitamin D supplements for Covid prevention) results are negative, but the implications are narrow and must not be misinterpreted.https://t.co/mnmDeOJFak
This was a well done trial in many ways. Here's what is reasonable to conclude from it & what isn't:

— Karl Pfleger, PhD (@KarlPfleger) March 24, 2022