I take a bunch of supplements too. My method is to track my food in Chrono-meter and see what nutrients I am low on and then supplement these. It's not a perfect method but it's the best I can come up with. It's also the reason I eat only "nutrient dense" foods. The only nutrient that I register low on that I don't supplement is calcium. There is so much ambivalent data on calcium supplementation that I decided to stop supplementing. Who knows? Right now I take B complex, magnesium glycinate (a form of magnesium without the laxative effect), soy free vitamin e, potassium, and vitamin D3. Over time I have cut a bunch out and this is what I am left with. I've been making fermented veggies rather than take a probiotic. It's a crap shoot.

Jean