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GNC Pro Performance Mass Gainer Complex, Double Chocolate 40 oz (1134 g)

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selected flavor: Double Chocolate
selected size: 40 oz
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Dietary Supplement


Advanced Muscle Mass Gainer Formula
50g Protein | 700 Calories | 7g Sugar | 116g Carbs

  • 50g of Fast-, Medium- and Slow-Releasing Quality Protein
  • Infused with Ribose & MCTs for Rapid Muscle Energy
  • Good Source of Essential Amino Acids & Fiber
  • Use Daily & Post-Workout

The Benefits of Mass Gainer Complex

When you need results, you need Pro Performance® Mass Gainer Complex.  This scientifically advanced formula is powered by a 50g protein complex system that supplies fast-, medium- and slow-digesting quality proteins.  This helps ensure your muscles get the amino acids they need quickly and over time for prolonged results.

Pro Performance® Mass Gainer Complex provides the conditionally essential amino acid, Arginine, a critical component in helping the body create nitric oxide for greater pumps.  It also supplies essential Branched Chain Amino Acids (BCAA) isoleucine, leucine and valine.  BCAA help fuel your muscles, preserve muscle energy supplies and help to reduce muscle breakdown during intense exercise.

Pro Performance® Mass Gainer Complex also contains a special blend of fiber and complex carbohydrates to power the body's primary energy creation machinery.  This dual-carbohydrate system provides both rapid-absorbing and prolonged fuel for your muscles when you need it most.  It also helps to replenish energy stores after high-intensity training.  Pro Performance® Mass Gainer Complex is also powered by ribose and medium chain triglycerides (MCT) which are quickly absorbed for pure muscle energy - with absolutely no trans fat!

With Pro Performance® Mass Gainer Complex, you get the combination of protein, essential aminos, pure carbs and unique micro micronutirents to drive your body to put on the added size that you want - fast!

Typical Naturally Occurring Amino Acids Per 50 Grams of Protein


2347 mg


1744 mg

Aspartic Acid

5327 mg


610 mg

Glutamic Acid

9145 mg


1321 mg


958 mg


3025 mg


4948 mg


4326 mg


866 mg


1895 mg


3066 mg


2606 mg


2909 mg


958 mg


1392 mg


2879 mg


50317 mg

†Indicates Branched Chain Amino Acids (BCAA)

Significant product settling may occur.


*These statements have not been evaluated by the Food and Drug Administration.  This product is not intended to diagnose, treat, cure or prevent any disease.


Contains milk, soy and is manufactured on equipment that also processes peanut, wheat and egg.  Keep out of reach of children.

©General Nutrition Corporation

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