Claim: "Habitual use of vitamin D supplements was associated with a 34% lower risk of COVID-19 infection"; "This is an observational study so causation cannot be established"
Fact-check: More evidence needed for the claim that vitamin D supplements reduce risk of COVID-19 infection - Science Feedback
Verdict: mostly accurate
Organisation: Science Feedback
Author: Ian Le Guillou
Date published: 2021-02-22T17:17:39