Optimum Nutrition, Inc. (ON) is a wholly-owned subsidiary of Glanbia, a leading international cheese and nutritional ingredients group. ON owns and operates two premium sports nutrition brands, Optimum Nutrition, and ABB Performance, providing a comprehensive line of products across multiple categories.

With state-of-the-art production facilities in three states, ON is the only sports nutrition company that manufactures items in every product category. Whether it's nutritional bars, protein powders, ready-to-drink shakes, energy formulas, or vitamins and minerals, Optimum Nutrition takes a hands-on approach to maintain the very highest standards.