Evidence-based nutrition, in plain English — every entry sourced from clinical research.

Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of individual participant data

BMJ, 2017 · Systematic review & meta-analysis (individual participant data)

Across the pooled trials, vitamin D supplementation modestly reduced the risk of acute respiratory infection, with the clearest benefit in people who were most deficient at the start.

View the study on PubMed →

Summary in our own words; follow the link for the source and full abstract.

Keep reading