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Optimum Nutrition Protein is Now On-The-Go

You work hard in the gym to push your muscles, and you know protein is crucial for muscle support. Reach for ON’s new Opti-Bar anytime you want premium protein to help fuel muscle recovery. The latest innovation from Optimum, the sports nutrition industry leader and maker of the world’s #1 whey protein, takes quality and taste to a whole new level.

Available in five tempting flavors: Chocolate Chip Cookie Dough, Chocolate Brownie, Cookies 'N Cream, White Chocolate Raspberry, Cinnamon Pecan

Athletes Who Use Opti-Bar

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Julian Smith

“Opti-Bars are awesome! I've steered clear of all protein bars in the past because I wasn't sure of how quality the ingredients were in them! Now that ON makes bars, I had to try them. They are awesome, great tasting, and really put my mind at ease knowing that they were made with the quality products/ingredients”

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Tobias Young

“I have one word for the new Opti-Bar...DELICIOUS!”

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Theresa Jenn Lopetrone

“I'm impressed with ON's new protein Opti-Bar. The flavors are on point, the texture is smooth and not grainy, and the macros are a dream.”

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Jen Turnbull

“These bars make my mouth water! Awesome flavor and they do not leave that chalking taste in my mouth”

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Kate Osman

“I am in love with ON's new Opti-Bar! It is perfect for people who are constantly on the go or travel a lot, pop it in your bag/purse for a quick macro-friendly, tasty snack! HIGHLY recommended!”

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Sean Royer

“Optimum Nutrition has come up with a bar that tastes great and is packed with 20g of protein. Perfect for getting in a quick snack when I'm unable to sit down and eat a meal. The chocolate chip cookie dough flavor has me hooked!”

Optimum Nutrition Quality

At ON we are proud to know that we are one of the few sports nutrition companies who own and operate their own production facilities. While it's true that ON is one of the world's largest producers of sports nutrition products, we remain focused on being recognized as the best. In fact, our requirements for raw materials are so strenuous that it's not unusual for ON Quality Assurance Technicians to reject entire truckloads of raw materials that do not meet our high standards. We like to think that we take as much pride & care in crafting our award-winning supplements as our consumers do with crafting their physiques and fitness accomplishments.

There is Only One Gold Standard

Optimum Nutrition's Award Winning supplements have consistently delivered the Highest Quality products to athletes across the globe -- Here is a brief look at how.