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Who We Are


For nearly 30 years, Optimum Nutrition has been setting higher standards for sports nutrition. Not just easy to mix powders, but protein bars, caps, tabs, softgels and ready to drink products as well. ON maintains its uncompromising commitment to quality by being one of the few companies to own and operate cGMP compliant production facilities in Illinois, South Carolina and Florida. You can count on Optimum Nutrition to be your trusted partner in achieving True Strength.

What ON is Known for

  • The World's Best-Selling Whey Protein*
  • Introducing the Original Micellar Casein Protein
  • Creating the Anytime Energy Category
  • Producing Products in Company Owned & Operated cGMP Compliant Facilities in the U.S.A.

*Based on 2013 sales at major sports nutrition retailers

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Our Favorite ON Products

Highly Recommended!