GNC is the largest global specialty retailer of nutritional products and its headquarters is in Pittsburgh, PA. The nutritional products they offer include vitamin, herbal, mineral and other supplements and sport nutrition, energy and diet products. It has over 4,800 retail locations in the entire United States that include more than a thousand franchise and 1,200 Rite Aid stores and they are operating in 48 international markets. The company is committed to helping their consumers live a healthy and energetic life through the nutritional, diet and energy supplements, vitamins and minerals they offer. Their website is www.gnc.com where you can find the products and products information they offer. These are not only quality products, their price tags are all affordable to consumers.