Natural supplements can be dangerously contaminated, or not even have the specified ingredients
More than two-thirds of Americans take dietary supplements. The vast majority of consumers – 84% – are confident the products are safe and effective.
They should not be so trusting.
I’m a professor of pharmacy practice at the University of Connecticut. As described in my new article in the Annals of Pharmacotherapy, consumers take real risks if they use diet supplements not independently verified by reputable outside labs.
What are the risks?
Heavy metals, which are known to cause cancer, dementia and brittle bones, contaminate many diet supplements. One study of 121 products revealed 5% of them surpassed the safe daily consumption limit for arsenic. Two percent had excess lead, cadmium and aluminum; and 1% had too much mercury. In June 2019, the Food and Drug Administration seized 300...