vitamin D: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Last updated

Nov. 12, 2026

News •

Vitamin D-related treatment offers new hope for premature aging • Nov. 4, 2026, 12:56 PM ET (Newsweek)

Taking calcium and vitamin D may not prevent broken bones • Nov. 2, 2026, 2:00 PM ET (Washington Post)

CT scans linked vitamin D levels to fat within muscles after bariatric surgery • Oct. 27, 2026, 8:01 PM ET (News-Medical)

Topics

ergocalciferol cholecalciferol 1,25-dihydroxycholecalciferol human nutrition rickets hypervitaminosis D familial hypophosphatemia vitamin D deficiency hematinic vitamin vitamin A vitamin K vitamin E vitamin C Choline vitamin B complex Carnitine para-aminobenzoic acid

Dig Deeper: More Articles That Discuss This Topic

Key People

default image

Adolf Windaus

German chemist