Not All Vitamin D Is Created Equal. New Study Reveals a…

Not All Vitamin D Is Created Equal. New Study Reveals a Hidden Problem. By Talmedora Editorial | May 4, 2026 If you take vitamin D supplements, you might want to check the label. Because according to new research, the type of vitamin D you're taking could make all the difference and one form might actually be working against you. Most people don't realize there are two main forms of vitamin D in supplements: Vitamin D2 (ergocalciferol), often derived from mushrooms or yeast, common in fortified foods and some supplements. Vitamin D3 (cholecalciferol), derived from animal sources like fish oil or lanolin, or synthesized from plants. For years, they've been treated as interchangeab