Took me forever to find (I now digitize and save my records but didn't then) but it was 30 ng/ml. Sounds like that is actually not deficient by most standards.

Took me forever to find (I now digitize and save my records but didn't then) but it was 30 ng/ml. Sounds like that is actually not deficient by most standards. My doctor was a little woo at the time. I started taking 1800 iu. I do have extremely pale skin, but I yeah, a lot of it ends up covered in the winter.