Vitamin D

Clinical evidence: 3 studies 2017–2022

1. Benefit observedIndividual participant data meta-analysis10,933 participantsImmune Health

   Vitamin D supplementation to prevent acute respiratory tract infections

   BMJ2017View source ↗
2. No benefit observedRandomized controlled trial25,871 participants

   Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease

   New England Journal of Medicine2019View source ↗
3. No benefit observedRandomized controlled trial25,871 participantsBone & Dental Health

   Supplemental Vitamin D and Incident Fractures in Midlife and Older Adults

   New England Journal of Medicine2022View source ↗