by Will Jones, Daily Sceptic:

Vitamin D cuts the risk of death from COVID-19 by 51% and the risk of ICU admission by 72%, a meta-analysis of randomised controlled trials has found. The new study, published in Pharmaceuticals, is titled “Protective Effect of Vitamin D Supplementation on COVID-19-Related Intensive Care Hospitalisation and Mortality: Definitive Evidence from Meta-Analysis and Trial Sequential Analysis”. Here’s the abstract, summarising the study’s method and results.