Big-O Bar

48 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 48 Reviews
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A Tiger Fitness Customer
Taylor F.
United States United States
Very Good

Best one yet. Addicting.

Brandon S.
United States United States

It's got a higher fat and sugar content than most and what I usually prefer, but then again, it has real ingredients that can be pronounced and not cheap fillers it seems can be found in protein bars. The peanut butter and fruit cereal are an incredible combination, I'd definitely keep coming back.

Austin S.
United States United States
Fantastic bar

The experience was awesome and the bars were phenomenal

Melanie L.
Canada Canada
Big O Birthday Cake

These bars are absolutely amazing! The taste is unreal. And quite filling. My favourite by far.

Oscar L.
United States United States
Amazing bars

These bars get me through my sweet tooth I. Competition prep

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.