 It's 1114, and I'm Dimitri Sotis. Thanks a lot for being with us. Millions of Americans take nutritional supplements. They're convinced the natural ingredients in these non-prescription products can prevent disease, make you feel better, slow down the effects of aging, maybe. But is there any proof of that? Consumer man Herb Weisbaum, a contributing editor at Checkbook.org, has some straight talk about supplements.