Usana (NASDAQ: USNA), or USANA Health Sciences, Inc., is a network marketing company that prouces a variety of health-care products, including vitamins, skin-care products, and nutritional supplements. Most of these products are manufactured in the United States and sold in thirteen international markets. Its products are used by many USANA-sponsored Olympic and professional athletes. In 2007, several of its executives were discovered to have made false statements in their resumes. USANA currently faces a class action lawsuit from some of its distributors.