It’s Time to Say “Goodbye” to Vitamin D2 (ergocalciferol)

In the United States, vitamin D supplementation is primarily available as vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Although these two have historically been considered interchangeable and equipotent, the current body of literature strongly supports the preference of Vitamin D3 (cholecalciferol) over D2 (ergocalciferol). Vitamin D2 versus Vitamin D3 Vitamin D3 (cholecalciferol) is produced by […]