GNC Holdings, Inc. is a specialty retailer of health, wellness and performance products, which include protein, performance supplements, weight management supplements, vitamins, herbs and greens, wellness supplements, health and beauty, food and drink and other general merchandise. The Company's operations consist of purchasing raw materials, formulating and manufacturing products and selling the finished products. It operates in three segments: U.S. and Canada, International and Manufacturing/Wholesale. Its U.S. and Canada segment generates revenues primarily from sales of products to customers at its Company-owned stores in the United States, Canada and Puerto Rico, through its Websites, GNC.com and LuckyVitamin.com. Its International segment generates revenue primarily to its international franchisees. Its Manufacturing/Wholesale segment comprises its manufacturing operations in South Carolina and its wholesale partner relationships.