Just had my Nutreval results and it says that I am deficient in Vitamin D and ZINC, borderline deficient in B6, B12, Folic (I have been taking mb12, hb12, mfolate on and off for 2 months prior to test). I am confused with regard to VDR Taq, I am +/+ (AA), this effectively means that I do not have enough functioning receptors to process vitamin D. When I took vitamin D3 supplement (1000UI) a few years ago I seemed to be very sensitive after taking it for a few days and I didn't feel good on them. I retried at a 1/4 tablet, but after several days I felt worse. I am confused why that might be, I normally try to take one supplement at a time. Does VDR taq +/+ have something to do with is? I note that nutreval test does not include calcium levels, may be I am low in calcium?