SAN MARCOS, Calif., Nov. 11 /PRNewswire-FirstCall/ -- Natural Alternatives International, Inc. ("NAI")(Nasdaq: NAII), today announced that it has filed a lawsuit in the U.S. District Court for the District of Delaware, accusing Vital Pharmaceutical, Inc. ("VPX") and DNP International Co., Inc. of infringing patents exclusively licensed to NAI relating to its CarnoSyn® beta-alanine. NAI has also asserted claims for unfair competition and false marking against one or both of the companies in the lawsuit.

CarnoSyn® is a proprietary, patented form of beta-alanine. Beta-alanine is a naturally occurring beta amino acid produced in muscle tissue as a component of carnosine. Controlled studies have demonstrated that carnosine is a highly effective buffer to slow the acidic buildup in exercise stressed muscle, which otherwise could lead to shortened workouts and non-optimal competitive performance. Carnosine synthesis in the body is limited by the availability of beta-alanine. As confirmed in multiple studies, orally delivered CarnoSyn® beta-alanine increases muscle tissue levels of carnosine, to provide cellular buffering for significant performance and recovery improvement.

NAI, headquartered in San Marcos, California, is a leading formulator, manufacturer and marketer of nutritional supplements and provides strategic partnering services to its customers. Our comprehensive partnership approach offers a wide range of innovative nutritional products and services to our clients including: scientific research, clinical studies, proprietary ingredients, customer-specific nutritional product formulation, product testing and evaluation, marketing management and support, packaging and delivery system design, regulatory review and international product registration assistance. For more information about NAI, please see our website at http://www.nai-online.com.

CONTACT - Kenneth Wolf, Chief Financial Officer, Natural Alternatives International, Inc., at 760-736-7700 or investor@nai-online.com.

SOURCE Natural Alternatives International, Inc.

Kenneth Wolf, Chief Financial Officer of Natural Alternatives International, Inc., +1-760-736-7700, investor@nai-online.com