Rico,
How wrong you are. Centrum and One a Day provide the recommended daily allowance so that you are not defecient in a vitamin. Sure if you take a Centrum you wont get scurvy, but you are not getting the best amount. GNC UM Gold is the OPTIMAL amount of vitamins and minerals. Nobel Prizes have been awarded for research regarding mega does of Vitamin C.
Buying 2 large UM Golds with a GC discount comes up to $54.00 for a 6 month supply. Is $0.30 a day worth the assurance that you are getting the optimal amount of vitamins and minerals?