Natural Alternatives International, Inc. engages in formulating, manufacturing, and marketing of nutritional supplements. It operates through the following segments: Private-Label Contract Manufacturing, and Royalty, Licensing, and Raw Material Sales. The Private-Label Contract Manufacturing segment provides manufacturing services to companies that market and distribute nutritional supplements and other health care products. The Royalty, Licensing, and Raw Material Sales segment is associated with the sale and license of beta-alanine. The company was founded by Mark A. LeDoux in 1980 and is headquartered in Carlsbad, CA.