The Bottom Line on Dietary Supplements
Julissa Treviño

Of the 776 products tested, 45.5% were advertised as sexual enhancers, 40.9% as weight loss aids, 11.9 % to promote muscle building and 1.8 % as joint and muscle pain remedies. While some of these products might contain vitamins and minerals, they clearly aren't intended to be used as vitamin/mineral supplements.

There is no reason to think that dangerous pharmaceuticals are to be found in vitamin and mineral products and since none of this type of supplement were tested in this study, it’s misleading to include them with the products that were examined. It should also be noted that The Upjohn Company is listed as co-investigator.