6xMom,

I have wondered the same thing myself. I have noticed the weight seems to come off more easily when I get "lazy" with my vitamins. My facial "flushing" goes away when I stop the vitamins as well.

I track my foods on Fitday, and have noticed that I am only lacking in a few nutrients. I have considered buying these separately to supplement rather than taking a multivitamin. I haven't made that decision yet. There's a lot to consider.