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GNC Pro Performance 100% Soy Isolate Soy Protein Mix, Creamy Vanilla 37.12 oz (1056 g)

our price: $51.99$1.40 / oz
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selected flavor: Creamy Vanilla
selected size: 37.12 oz
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Isolated Soy Protein Mix
25g Protein | 130 Calories | 2g Sugar | 3g Carbs

  • 315% More Arginine & 11% More Glutamine vs Standard Whey
  • Powerful Protein Formula Featuring All 9 Essential Aminos
  • Low Carb Diet Friendly, Natural Vegetarian Protein Source

Daily | Post-Workout | Recovery


Daily Dose

Protein (g)


No Training/Off Day

1/2 scoop - 1 scoop

12.5 - 25

Fuels lean muscle & metabolism

Cardio Training

1 scoop


Supports recovery

Resistance Training

1 - 2 scoops

25 - 30

Boosts nitrogen balance

Cardio & Resistance

2 scoops


Replenishes anabolic building blocks

This dosage chart is a recommendation by GNC® Scientists for best results from 100% Soy Isolate.  It is recommended that the minimum daily dose is taken on each day based on activity level.

Pro Performance® 100% Soy Isolate is a protein shake that is cholesterol-free, with no lactose, and is from vegetarian sources.  Soy protein is one of the most anabolic proteins.  one of the biggest misconceptions behind this protein is the link to estrogen production; however, it contains all of the essential amino acids, including BCAA.  BCAA may help preserve muscle glycogen stores and reduce the amount of protein breakdown during exercise.  This formula features Supro® soy protein, one of the most clinically studied soy proteins.  Supro is made from soybeans that are produced while being tightly monitored and controlled from planting through processing.

The Pro Performance® Results Advantage
Protein is an essential nutrient that is necessary for the growth, repair and maintenance of body tissue such as skin, bones and muscles.  Studies ave shown that soy protein taken by active individuals helps support muscles during exercise.  Additionally, diets low in saturated fat and cholesterol that include 25g of soy protein a day ma reduce the risk of heart disease.

One serving of Pro Performance 100% Soy Isolate features 25g of protein providing an equivalent nitrogen factor of 25.  Soy protein is an effective source of nitrogen for fueling lean muscle mass.  Your muscles can only grow when your body retains enough nitrogen.  This formula delivers naturally-occurring anabolic amino acids into your bloodstream.  This spike in aminos provides nitrogen and subsequently creates a nitrogen-rich environment needed for maximum muscle protein synthesis.  Protein synthesis is crucial to the building of lean muscle.

The Pro Performance Quality Advantage
GNC Pro Performance 100% Soy Isolate is also tested for banned substances, providing peace of mind in the highest quality formulation.  Our researchers created a superior formula that not only delivers muscle fueling results, but every flavor has a satisfying, delicious taste profile.  Each serving mixes up instantly with a blender, shaker, or a spoon - it's that smooth and it couldn't be easier.

Typical Naturally Occurring Amino Acids per Serving:

With Water

With Milk

With Water

With Milk


960 mg

1240 mg


1580 mg

2230 mg


1910 mg

2180 mg


310 mg

510 mg


2930 mg

3530 mg


1310 mg

1680 mg


330 mg

390 mg


1310 mg

2060 mg


4990 mg

7380 mg


1310 mg

1730 mg


1030 mg

1200 mg


910 mg

1270 mg


620 mg

840 mg


290 mg

400 mg


1170 mg

1610 mg


960 mg

1350 mg


1940 mg

2720 mg


1140 mg

1680 mg

†Indicates Branched Chain Amino Acid (BCAA).

25000 mg

34000 mg

This Product Supplies Only Naturally Occurring Amino Acids

Powered by Supro Performance Protein
Supro is a registered trademark of Solae, LLC® for its brand of soy protein products.  It is used under license by General Nutrition Corporation.

Products that have this logo have been tested for banned substances by HFL sport Science, a world-class anti-doping lab.
Product was tested for over 145 banned substances on the 2012 World Anti-Doping Agency (WADA) Prohibited List via HFL skip lot testing protocol # CP0307.

No Artificial Colors, No Wheat, No Gluten, No Dairy, Yeast Free.




Contain:  Soybeans.  Use as a food supplement only.  Do not use for weight reduction.  Significant product settling may occur.

©General Nutrition Corporation