[odrekf]

As a vegan, I learned that there's D2 (comes from plants) and D3 (comes from animals), and they are the same as far as I know. Not sure about using them for treatments.

[irishcoffee]

As a carnivore I’ve learned the same.

[oarsinsync]

As an omnivore I didn’t know either of these things before now, so I thank my learned extreme-dieted colleagues for sharing.