Your body will only absorb what is needed at the given moment and then excrete the remainder. That's why it's important to take your multi-vitamin supplement every day. Your body does not store vitamins.
The fat soluble vitamins; vitamins A, D, E and K you have to be a little bit more careful about as you can develop toxicity if you mega dose those - but you would have to take the whole bottle in one sitting to experience that problem.
Your body can only absorb so much however so mega dosing vitamins is mainly a waste of money. Most people on this board use Ruthless 3D from n2bm.com. It is a very cost effective multi vitamin that gives your body everything it needs.
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