I was prescribed 50000 iu of vitamin D taken weekly for 16 weeks after my bloodwork revealed my levels were low (23). I have read that all prescribed vitamin D is D2. If D3 is better why is the prescrition form D2. Would I be better just taking more of the D3 supplements?
I am wary of taking man made as opposed to "natural" products. Am I worrying needlessly?
Edited November 30, 2008 at 12:36 pm