Ergocalciferol is a form of vitamin D, also called vitamin D2.
Ergocalciferol is widely used as a Vitamin D supplement, and a 2011 clinical guideline[1] considers it to be as effective as cholecalciferol (Vitamin D3), which is produced naturally by the skin when it is exposed to ultraviolet light. However there is now conflicting evidence regarding how similarly D2 and D3 behave in the body and whether they are equally potent.
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Keywords: calcidol, calciferol, calcium, cholecalciferol, d2, deltalin, drisdol, ergocalciferol, molecule, prohormones, supplement, vitamin
