The popular press regularly publishes investigative reports on the dietary supplement industry. Often they are of a critical slant. It's not difficult to see why. The regulatory status of the dietary supplement industry is practically flimsy with a post-market regulatory structure but little funding to support oversight by the FDA. As a result, unscrupulous or honestly unaware manufacturers and marketers at times launch adulterated, unsafe and mislabeled supplement products into the market. Consumers play a role too. They believe what they want to believe - extrapolating curative effects from structure-function claims and anecdotal successes stories.
Today, the New York Times published an article exploring this three pronged problem that the dietary supplement industry struggles with. You may read the article titled, Potential for Harm in Dietary Supplements here.
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