Em um estudo de randomização mendeliana, pesquisadores não descobriram nenhuma evidência genética que dê base à associação entre níveis de vitamina D e suscetibilidade a Covid-19, gravidade ou hospitalização.

Vitamin D and COVID-19 susceptibility and severity in the COVID-19 Host Genetics Initiative: A Mendelian randomization study – PLOS Medicine

Comentário: Vitamin D may not provide protection from COVID-19 susceptibility or disease severity, study suggests – PLOS

Relacionado: Living systematic review: The evidence is insufficient to determine the benefits and harms of vitamin D supplementation as a treatment of COVID‐19. E RCT: Vitamin D3 does not improve outcomes in hospitalized patients with moderate to severe COVID-19