Formulated, flavored, and trusted by 5x Mr. Olympia Chris Bumstead, CBUM Series Mass Gainer delivers the great-tasting fuel you need to support next-level muscle mass and size. This high-protein protein shake packs 53g of protein, 1,070 calories, and 2.5g of creatine monohydrate in every scoop.

Frequently Asked Questions

What is Carb10?

Carb10 is a low-glycemic source of carbohydrates including pea starch and lactase.

What is amino spiking?

Amino spiking is the practice of adding low-grade amino acids to a protein powder supplement.

Are protein shakes “good” for you?

Protein shakes can be an excellent addition to a well-rounded diet and healthy lifestyle. Research has shown that supplementing with protein can support athletic performance, post-workout recovery, muscle maintenance, and muscle growth.

Can protein shakes support weight gain?

Protein shakes may support weight gain if they contribute to a calorie surplus in your diet.

Are protein shakes "good" for women?

Supplementing with protein is as beneficial for women as it is for men in supporting muscle growth and maintenance, recovery, and performance.

How can protein supplements benefit my muscles?

Protein supplements provide the nutrients your body needs to stimulate muscle protein synthesis and support recovery post-workout.

Who Would Benefit from Taking Protein?

Athletes and fitness enthusiasts looking to support muscle growth, muscle maintenance, performance, and post-workout recovery

• Older adults who require more protein to maintain muscle mass and overall health
• Busy professionals and students who need a quick and convenient source of protein on the go
• Anyone with increased protein needs, such as vegetarians or individuals practicing a low-carb diet