Do I need to worry about contamination in commercial sports supplements like protein powders?
A. Yes! A survey of 634 nutrition supplements indicates about 15% included a banned substance, even though the supplement came from a factory that did not even manufacture that substance (i.e., steroids, ephedrine). The contaminants make the products “work” (read that, “sell better”). The products most likely to be contaminated with illegal compounds include bodybuilding supplements and weight loss products. Buyer beware!
