A GNC store is pictured at Westfield Santa Anita mall during the outbreak of the coronavirus disease (COVID-19), in Arcadia, California, U.S., June 25, 2020. GNC Holdings Inc (GNC.N), the vitamin and herbal supplement retailer, has filed for bankruptcy, with plans to close at least 800 to 1,200 locations and possibly sell itself. REUTERS/Mario Anzuoni