I just saw a report published that ranked many many multivitamins. Well, if you are taking walmart, centrum, etc....u are basically throwing your money away. Trust me, it hurt to see the article, but it is very legit. It was ranked on 1-400, and 400 being the worst multi. From what i remember, centrum, equate, etc were like 367, 387.
I believe the brand "Lef" was highly ranked. Im not sure if that is the name or not though