Natural Alternatives International, Inc. engages in formulating, manufacturing, and marketing of nutritional supplements. It operates through the following segments: Private-Label Contract Manufacturing, and Patent and Trademark Licensing. 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 includes royalty income from its 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.