You open the bottle of your multivitamin or dietary supplement. You retrieve the required dose. You pour your glass of water and swallow down the capsules or pills. Then, you assume that your body will handle the rest, providing you with the nutrients contained in the formula. The truth is that often only a small fraction of what's inside of a supplement ends up digested and absorbed. The majority of ordinary dietary supplements passes through your body and is eliminated without you taking full advantage of the vitamins, minerals and herbs that they contain.