Thanks JL, useful info.
I have never megadosed like you, just gradually done 5000IU for the winter until about April, then 2000IU since. That's interesting you went up to 271! - gosh that's high! - did you have to do anything to bring it down, or did you just leave off the supplements for a while?
I agree about getting the other vits/minerals correct and it increasing the absorbtion - I made negligable progress until I got the cal/mag/zinc sorted too and the timing info you gave me about splitting the vit d dose helped I think, taking mag at one time with d, then calcium and mag later too.
Think I'll go twice a year to keep an eye on things.
RR-MS dx 1998 and Coeliac dx 2003
Tecfidera, Cymbalta, Baclofen.
EPO, Fish Oils, Vitamin D3 2000 IU, Magnesium, Multivitamin/mineral, Co-Enzyme Q10, Probiotics, Milk Thistle, Melatonin.