For those not tested, the accepted amount is 2000IU D3 daily.

You buy the single D3 supplement...NOT cod liver oil with A in it.

But say you test at 20... take 2000IU... in ideal situations you might raise to a level of 40. That would still be low for an MSer.

If you do not go outside much...you won't test very much in D.
There is one person on the NT boards who tested at 3. That is pretty scary. The MS recommendations are higher than for others. People like me are given 50 as a goal. My doctor wants me at 70.

MS patients should get screened for B12 (low B12 mimics MS symptoms) and D. The data are clear on this.