CHICAGO, IL - FEBRUARY 04: In this photo illustration, supplements purchased at Wal-Mart and Walgreens stores are shown on February 4, 2015 in Chicago, Illinois. An investigation by the New York State attorney generals office into store-brand supplements being sold at Wal-Mart, Walgreens, GNC and Target found that many did not contain the herbs shown on their labels and some included potential allergens not identified in the ingredients list. (Photo Illustration by Scott Olson/Getty Images)
Scott Olson—Getty Images
By Arpita Aneja
March 30, 2015
TIME Health
For more, visit TIME Health.

GNC, the largest specialty retailer of health and wellness supplements in the country, said it will begin DNA testing its products to identify which plants are found in its supplements. Watch Know Right Now above to find out more.

Read next: Foods You Should Eat Instead of Taking Vitamins


You May Like