The sale of dietary supplements is big business today; 2007 sales in the U.S. alone are estimated to be as high as $22.5 billion. With numbers like these at stake, it's no surprise that savvy nutrition marketers are seeking to increase their market share via an exponentially expanding roster of products, all aimed at consumers' self-image, fears and paranoia.
So, from this multi-coloured galaxy of pills, powders and potions, which nutritional supplements do we really need? Which are the priority?
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