--- title: GNC: Supplement Retailer Will Start DNA Testing Its Products description: The new testing procedures will be more rigorous than required by federal law. canonical: https://time.com/3763917/know-right-now-gnc-dna-testing/ author: Arpita Aneja article:opinion: false article:content_tier: free article:published_time: 2015-03-30T19:17:14.000Z article:modified_time: 2026-02-22T05:33:09.557Z article:section: Health og:title: Why GNC Will Start DNA Testing Its Products og:description: The new testing procedures will be more rigorous than required by federal law. og:url: https://time.com/3763917/know-right-now-gnc-dna-testing/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9f7b8eff395919b5/698785e2a988ca11976ad26a/462760366.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 1920 og:image:height: 1080 og:image:alt: Study Shows Many Store Brand Supplements Do Not Contains Ingredients They Claim To og:type: article twitter:card: summary_large_image twitter:title: Why GNC Will Start DNA Testing Its Products twitter:description: The new testing procedures will be more rigorous than required by federal law. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9f7b8eff395919b5/698785e2a988ca11976ad26a/462760366.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # Know Right Now: GNC Will Start DNA Testing Its Products > Sponsored content. 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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) 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](https://time.com/author/arpita-aneja/)  ## Arpita Aneja Mar 30, 2015 7:17 PM UTC 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_](http://time.com/3763271/gnc-supplements-nutrients-food/) ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3763917/know-right-now-gnc-dna-testing/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3763917/know-right-now-gnc-dna-testing/"},"headline":"Know Right Now: GNC Will Start DNA Testing Its Products","datePublished":"2015-03-30T19:17:14.000Z","dateModified":"2026-02-22T05:33:09.557Z","description":"The company's new testing procedures will be more rigorous than required by federal law","url":"https://time.com/3763917/know-right-now-gnc-dna-testing/","keywords":["Supplements","FDA","health","Testing","protein","Know Right Now"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt9f7b8eff395919b5/698785e2a988ca11976ad26a/462760366.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Arpita Aneja","jobTitle":null,"url":"https://time.com/author/arpita-aneja/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt9f7b8eff395919b5/698785e2a988ca11976ad26a/462760366.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Study Shows Many Store Brand Supplements Do Not Contains Ingredients They Claim To","caption":"Study Shows Many Store Brand Supplements Do Not Contains Ingredients They Claim To","creditText":"Scott Olson—Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/supplements/","name":"Supplements"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/3763917/know-right-now-gnc-dna-testing/","name":"Know Right Now: GNC Will Start DNA Testing Its Products"}}]}] ```