Optimum Nutrition

Optimum Nutrition strives to produce distinctive, affordable, premium-quality products while making every effort to anticipate ever-changing customer needs and meet the demands of a dynamic market with innovative products, effective support materials, and unsurpassed service.

Optimum Nutrition, Inc. (ON) is a wholly owned subsidiary of Glanbia, a leading international cheese and nutritional ingredients group. ON is a leading manufacturer of nutritional supplements and the only sports nutrition company in the industry to manufacture items in every product category. Optimum Nutrition is able to control the integrity of all of its products through in-house manufacturing.