D2 is the active form in plants. In humans it must be converted to D3. https://www.healthline.com/nutrition/vitamin-d2-vs-d3#section1 https://www.healthline.co

D2 is the active form in plants. In humans it must be converted to D3. https://www.healthline.com/nutrition/vitamin-d2-vs-d3#section1 https://www.healthline.com/nutrition/vitamin-d2-vs-d3#sectio...