Big-O Bar

60 reviews
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The first product from the new brand O15 Nutrition by Mr. Olympia Brandon Curry. The 100g Big-O bar represents whole-food meal replacement at its finest. It is built on 4 key ingredients (peanut butter, honey, 100% whey protein hydrolysate, and MCT oil) to provide satiation and nutrient-rich calories that your body can utilize for physical performance and recovery.

O15 Nutrition Big O Bar Callouts

The Peanut Butter and MCT Oil provide a strong healthy fat base for energy and cognitive support.  The super-food honey is the primary carbohydrate giving you a low-glycemic energy source. Each bar boasts 24g or more of premium protein from 100% Whey Hydrolysate and Peanut Butter. 

These ingredients will not cause GI discomfort since they are derived from whole foods. Ingredients that are easier to digest equals more nutrients toward muscle tissue repair, glycogen replenishment, and cognitive function. 

Available in Birthday Cake and Fruit Cereal, Big-O bars can be consumed as a snack or as a meal in and of itself. 

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Customer Reviews
4.9 Based on 60 Reviews
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Albert L.
United States United States
Best chocolate bar

Outstanding. All 3 flavors are great.

Matthew P.
United States United States
Very sweet

Very rich. Sweeter than the other bars.

Austin G.
United States United States
Best bar on market

Currently in a police academy and these were essential to have

Stephen R.
United States United States
Meal replacement.

I think this is overall a decent tasting protein bar . Higher in calories so I use it as a meal replacement.

Thomas J.
United States United States
Would buy again

The taste was good the calories were good and if you buy in bulk it costs less

Nutrition Info

Warning Concerning California Residents: This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.