Which vitamin D supplements are used for the prevention of osteoporosis?

Updated: Jan 20, 2021
  • Author: Rachel Elizabeth Whitaker Elam, MD, MSc; Chief Editor: Herbert S Diamond, MD  more...
  • Print

Vitamin D is available as ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3). Vitamin D is metabolized to active metabolites. These metabolites promote the active absorption of calcium and phosphorus by the small intestine, elevating serum calcium and phosphate levels sufficiently to permit bone mineralization. Ergocalciferol, the form mostly used in supplements and fortified foods, is absorbed with similar efficiency to cholecalciferol, the main dietary form, with similar effects on suppression of PTH.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!