Which Vitamins?

Hey- I take Centrum Performance 1/day, and the Chewable Calcium Citrate (Citracal) 3/day (I had an Iron issue). I also take retinol palmitate (easily absorbable Vitamin A I get it an GNC) 1/day b/c that was low, a Vitamin D 2/week prescription gel cap (also low) and the Niferex gold 1/day for iron (Prescription). I am one of those people who had lab issues, so I have to redo my labs every six months and adjust. Ironically, my B is just fine.