Melody

Heyjoe is correct that your serum levels will be affected by taking vitamins. I think, but am not sure, that folate and folic acid also mask a B-12 deficiency...not just additional B-12. I can't remember, but I read up on that a while ago. The lab people don't ask and the docs frequently don't realize that either. I would ask before you have them take the blood, because you might be wasting blood and money...and none of us want to do that.

C