Vitamin D3: Lanolin, Lichen and Vegan Status

Most vitamin D3 is made from lanolin — wool grease — which makes it animal-derived but not slaughter-derived: accepted by vegetarian standards, incompatible with vegan ones unless the D3 is lichen-derived. Lichen D3 exists and is documented by the raw-material supplier. Vitamin D2 (ergocalciferol), produced from fungal and yeast sterols, is compatible with vegan claims.