Five large randomised controlled trials involving over 100,000 participants found mostly null effects on hard clinical endpoints, prompting the Endocrine Society to revise its 2024 vitamin D sufficiency threshold back to 20 ng/mL—aligning with broader scientific consensus and challenging influencer claims of "optimal" higher levels. — Photo by Nataliya Vaitkevich on Pexels (Pexels License)
MD, MPH, PhD. Editor-in-Chief, Georgian Medical Journal (GMJ). Professor and Head, School of Public Health, David Tvildiani Medical University (DTMU), Tbilisi, Georgia. Chair, Public Health Institute of Georgia (PHIG). President, Accréditation Sans Frontières (ASF), Paris. Secretary/Treasurer, UEMS Section of Public Health. WHO Consultant, Health and Migration, Geneva. Former Member, UN Secretary-General's Independent Accountability Panel for Every Woman, Every Child, Every Adolescent (IAP-EWEC, 2016–2021). ORCID: 0000-0001-7609-4515.
