GNC PRO PERFORMANCE® AMP Best-Selling Performance Down to a Science


Protein is the foundation of any sports nutrition supplementation plan. GNC Pro Performance® proteins are scientifically designed to meet your specific performance needs in a variety of delicious flavors and convenient sizes.

Whey Protein

Whey Protein, the most popular protein supplement source, is derived from milk and is essential in any nutritional regimen regardless of age or activity level.

Whey Isolate

The main difference between whey protein and whey isolate is the process used to filter the proteins. The isolation process separates the valuable protein from non-protein materials yielding highly-purified Whey Isolate.

Casein Protein

Casein protein is a slow-releasing protein with great muscle-fueling potential. Casein protein is excellent between meals and before bed for sustained amino acid delivery.

Soy Isolate

Soy is a protein from vegetarian sources that is free of cholesterol and lactose. The main difference between soy protein and soy protein isolate is the process used to filter the proteins. In soy protein isolate, the isolation process separates the valuable protein from non-protein materials yielding a highly purified soy protein product.

Egg Protein

Unlike dairy based proteins like whey or casein, egg protein is naturally free of lactose and therefore easier to digest for those who have trouble with dairy-based protein powders.

Mass Gainers

Mass gainer products combine protein, essential amino acids, carbohydrates and micronutrients to drive your body to put on the added size that you want — fast!

Protein Blends

GNC's premium protein blends provide slow, medium and fast release of muscle-fueling aminos.

On-The-Go Nutrition

GNC's delicious bars and pre-mixed protein shakes are convenient way to add quality protein to your workout plan.

Delicious Recipes

Tasty recipes that utilize products from theGNC Pro Performance® brand to take your training to the next level of flavor.

Amino acids are involved in protein synthesis. They are the building blocks of protein and help fuel skeletal muscles. Branched Chain Amino Acids (BCAAs) are essential aminos that are part of muscle protein and reduce the amount of protein breakdown during exercise.

Creatine helps muscles make and circulate energy to fuel quick intense activity of short duration including weightlifting or sprinting and may help improve athletic performance.

Vitamins, minerals, carbs and other nutrients are an important part of sports supplementation that can easily be overlooked. This section features GNC Pro Performance® CLA, HMB, Hybrid Carb Complex and Zinc Magnesium Aspartate.

The perfect complement to your athletic training regimen. This innovative sports training gear is designed to help athletes improve in competition and reach their full athletic potential.

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