Big-O Bar

56 reviews
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O15 Nutrition Big O Protein Bar Web Banner Name

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. 

O15 Nutrition Big O Bar Fruity Cereal Banner

Customer Reviews
4.9 Based on 56 Reviews
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Thomas J.
United States
Would buy again

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

United States United States
Amazing Bars

These are probably one of the protein bars I’ve ever had. I would definitely recommend these, and will definitely buy again.

William N.
United States United States
Tasty and Delicious

Great bars for a quick mid day snack or to start the day! I highly recommend them

Jose C.
United States United States
Big o bar

Flavor is bomb! Don’t need to try other flavors cuz this ones soooo good

Raymond E.
United States United States
Talk about the most delicious bar on the market

So... I eat these super slow so I can enjoy every delicious bite. The flakes of cereal are sooooooo good. I have to be careful because I will demolish an entire box. They make my mouth water just by thinking about them. Its like a huge peanut butter cake with fruity cereal treats in every bite!! I recommend these to everyone!!

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.