While many vegetarian vitamin D supplements are vitamin D2 (ergocalciferol), this one is vitamin D3. This great vitamin D supplement is for everyone, but vegans and vegetarians are particularly at high risk for coming up short on vitamin D, since some of the best sources of vitamin D—other than sunlight—come from animal products, which are typically not on the menu for most vegetarians and certainly not for vegans. Since vitamin D3 is a fat-soluble vitamin, Vegan D3 also contains plant omegas—from pumpkin seed oil and cranberry seed oil.