I have been taking a daily multi-vitamin (Optimum Nutrition) for about 2 years now. In the last year or so, my doctors have had me take a separate vitamins on top of the multivitamin. I'm now taking Vitamins D, B Complex, Magnesium, and fish oil in addition to the multi-vitamin. Should I continue to combine the mullti with the individual vitamins or should I start taking all of my vitamins individually?

