Natural Alternatives International, Inc. engages in the manufacturing, distribution, and marketing of nutritional supplements and other health care products. It operates through the Private-Label Contract Manufacturing, and Patent and Trademark Licensing segments. The Private-Label Contract Manufacturing segment provides manufacturing services to companies that market and distribute nutritional supplements and other health care products. The Patent and Trademark Licensing segment is involved in direct raw material sales and royalty income from license and supply agreements associated with the sale and use of beta-alanine. The company was founded by Mark A. LeDoux in 1980 and is headquartered in Carlsbad, CA.