Vitamins - cheap vs. expensive?
I've read that "cheap" vitamins and supplements (like the kind sold at Walmart, for instance) are mostly fillers and therefore not really effective. What confuses me is, the nutrition info on the label still lists the vitamin/supplement as having a certain daily value percentage. So if I pick up a $5 bottle of Vitamin C and the label says it has 100% of the DV of Vitamin C, what difference does it make if there are fillers in the tablets? Shouldn't I still be getting the 100% Vitamin C regardless?