Vitamin D2, or Ergocalciferol, is a fat-soluble vitamin được tạo ra từ the UV irradiation of ergosterol found in yeast and fungi. This makes it a suitable vitamin D chuace for vegetarian and vegan ứng dụng. It is commercially được sản xuất bởi exposing yeast-derived ergosterol to ultraviolet light and is available as crystalline powder or oil-based solutions.
Vitamin D2 supports calcium and phosphorus absorption, bone health, and immune chức năng, similar to Vitamin D3 though with somewhat lower potency. It is used in food fortification, dietary thực phẩm bổ sungs, and dược phẩm preparations, particularly in markets where plant-based vitamin D chuaces are preferred. Vitamin D2 is approved for food fortification in dairy alternatives, cereals, and beverages worldwide.