not worth your time or money. supplementation doesnt fix anything if you aren't diligent with diet in the first place. its that extra 5%
i think multivitamins are a sham in most cases as well. Only certain forms of things are bioavailable for your body to absorb, and they're all expensive. There are a handful of multis available that have the proper dosages of what you need, not just a trace amount so they can slap it on the label.
but, try it out. if it makes you feel better or whatever you're after, then stick with it. The above is my general opinion. Nutrition through diet trumps any supplementation.