Optimum Nutrition, Inc. (ON) was founded in 1987 by two brothers, Tony and Michael Costello. Originally known as Costello's Health Distributors, the entrepreneurial brothers soon recognised an opportunity to significantly improve quality and innovation in the sports nutrition industry. Their mission was to provide innovative products of consistently high quality to active adults the world over. The company is now part of Glanbia, a leading international cheese and nutritional ingredients group.
Optimum Nutrition, Inc. (ON) is a range of sports nutrition products which offer premium quality ingredients that taste great. With state-of-the-art production facilities, ON manufacture an award-winning range of nutritional bars, protein powders, ready-to-drink sports drinks, vitamins and essential minerals.
Our commitment to quality is evident throughout the entire product development process, making sure that each product contains the highest quality ingredients for maximum results. Before a single machine is switched on we carefully select the suppliers who provide our premium raw materials. All suppliers must provide a Certificate of Analysis for each raw material as a continued measure of quality.
These certificates are then verified through in-house and independent laboratory testing. Highly sophisticated equipment confirms the purity and potency of every ingredient on our labels. Quality assurance professionals make routine checks on all storage, blending and production areas, and conduct final inspections daily. Together, these procedures allow Optimum Nutrition to consistently deliver first-rate sports nutrition supplements under the strictest quality control standards.