Optimum Nutrition
Optimum Nutrition was founded in 1986 by brothers Tony and Michael Costello. Originally known as Costello’s Health Distributors, the entrepreneurial brothers soon recognized an opportunity in the need for significantly improved quality and innovative vision in the sports nutrition industry. The Optimum Nutrition brand was launched to satisfy both demands, and after 22 years of success reflected in great part by the ongoing best-selling status of ON Gold Standard 100% Whey, the Costello’s entered into agreement to sell the company to the international cheese and nutritional ingredients group Glanbia.
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.
As an advocate of healthy lifestyles, ON believes that every consumer should be able to purchase premium products; so we eliminate the middlemen and control the integrity of our brand throughout the entire production and distribution processes… making sure each product is not just top quality, but also among the most competitively priced in the industry.

Our products can be found throughout the United States in close to 10,000 independent natural product and specialty retail stores, gyms, and fitness centers, and several major grocery chain and drug stores. You can also find us at most on-line retailers, as well as throughout the world with current distribution in over 70 countries.

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