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BIG Pro-XR - Extended Release Protein Blend


BIG PRO-XR combines the fast-acting power of whey protein with the controlled-release effect of milk protein isolate. This high-impact duo not only provides your muscles with an immediate supply of amino acids, but also a sustained source for several hours after.*

The addition of Clean Cream™ provides long-term fuel for your muscles as well as essential fatty acids to support overall health.*

The Cause

BIG is proud to support our military and first responders! One dollar of every BIG product sold is donated to the Semper Fi Fund!

The Semper Fi Fund provides immediate financial assistance and lifetime support to post 9/11 combat wounded, critically ill and catastrophically injured members of all branches of the U.S. Armed Forces and their families. The Semper Fi Fund delivers the resources they need during recovery and transition back to their communities, working to ensure no one is left behind.

The Facts


BIG Extended Release Protein Blend (Whey Protein Concentrate, Milk Protein Isolate, Micellar Casein, Whey Protein Isolate), Cookie Pieces, Clean Cream™, Cocoa Powder, Natural and Artificial Flavor, Sucralose, Salt, Acesulfame K, Cellulose

Allergen Warning

Contains milk, peanuts, & soy. Produced in a facility that may produce Egg, Fish, Milk, Peanut, Shellfish, Soy, Tree Nuts, Wheat.

Directions For Use

Natural & Artificial Flavors, Citric acid, Sucralose, Silicon Dioxide

Additional Information

Powder density may be affected by settling. This may cause variations in scoop serving size and product levels. Packed by weight, not volume. Settling of product occurs after filling. Do not use if tamper-evident security feature is broken or missing. Exposure to heat, light or air can affect flavor or aroma; therefore keep out of direct light or heat. Store in a cool, dark place. Keep out of reach of children. Keep sealed when not in use. Do not use as sole source of nutrition.

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.