Vitamin D insufficiency affects 40–97% of North American populations, with risk increasing dramatically at higher latitudes and in individuals with darker skin tones, who require 5–10 times greater sun exposure than lighter-skinned individuals to achieve equivalent vitamin D synthesis. — Photo by Kayla Maurais on Unsplash (Unsplash 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.