GNC Pro Performance Bulk 1340 is a high-calorie mass gainer engineered to support the fitness and athletic goals of serious athletes and dedicated fitness enthusiasts. It promotes muscle growth, energy, and recovery while delivering 50 grams of protein per serving. Each serving packs 1340 calories and 277 grams of carbohydrates. This performance supplement is formulated to fuel intensive workouts and meet your body’s elevated demands during exercise. While this supplement receives high ratings and features quality ingredients, let’s examine whether it truly lives up to the hype in this comprehensive review of GNC Pro Performance Bulk 1340.

GNC Pro Performance Bulk 1340 Benefits
Muscle Energy And Growth
GNC Pro Performance Bulk 1340 delivers 50 grams of high-quality protein designed to fuel high-intensity workouts and power you through demanding exercise routines. This product features whey protein isolate, a premium protein source rich in essential amino acids, including branched-chain amino acids (BCAAs). These amino acids effectively support muscle growth and energy. BCAAs have been specifically proven to boost muscle protein synthesis, driving muscle growth and bulking results. They also help delay and prevent muscle fatigue during training. Additionally, glutamine helps preserve protein stores in the body, enabling enhanced protein synthesis and muscle mass development following workouts.

Supports Muscle Recovery
The whey protein isolate promotes superior muscle recovery through its branched-chain amino acid content. Essential amino acids including leucine, valine, isoleucine, and glutamine enhance post-workout recovery while reducing muscle fatigue and soreness. The formula also includes creatine, which accelerates muscle recovery during exercise sessions. Additionally, creatine enhances muscle strength, contributing to overall recovery effectiveness.
Supports Immune Health
This formula contains 10 grams of glutamine, an amino acid particularly beneficial for immune function. During illness or periods of immune system stress, glutamine levels naturally decline. Supplementing with this amino acid helps combat illness and maintains robust immune system health.
GNC Pro Performance Bulk 1340 Ingredients
The primary ingredient in GNC Pro Performance Bulk 1340 is whey protein isolate. Derived from cow’s milk, this isolate form contains minimal lactose while providing 90% protein content and reduced fat levels. Whey protein boasts an exceptional amino acid profile featuring essential amino acids and branched-chain amino acids. These amino acids are crucial for health, particularly muscle health support. They promote muscle growth while preventing lean muscle loss. BCAAs specifically stimulate muscle protein synthesis, resulting in muscle gain. Both BCAAs and essential amino acids enhance post-exercise muscle recovery and help delay muscle fatigue.
Glutamine represents another key amino acid present in both the whey protein isolate and the overall Bulk 1340 formula. With 10 grams included, glutamine contributes significantly to immune health support. Glutamine levels naturally decrease during illness, corresponding with weakened immune function. Glutamine supplementation strengthens immune systems and enhances their ability to combat toxins and free radicals.
The formula also features an Energizing ATP Complex containing creatine, which has been scientifically proven to support muscle growth, strength, and delayed muscle fatigue. Creatine additionally reduces muscle soreness, promoting more effective recovery. This ATP complex includes inositol, an anabolic compound that enhances stamina and accelerates muscle development. The blend also contains para-aminobenzoic acid (PABA), a non-essential amino acid classified as a B vitamin that helps generate natural energy for enhanced performance.
Additional ingredients include cocoa powder for flavoring and sucralose as a sweetening agent. Sucralose is an artificial sweetener that, while intensely sweet, may cause gut bacterial imbalances and various digestive complications.
Is GNC Pro Performance Bulk 1340 Really Healthy?
GNC Pro Performance Bulk 1340 presents a complex nutritional profile. While it contains substantial protein and excellent essential amino acids, including highly beneficial branched-chain amino acids, the product delivers extremely high carbohydrate and calorie content per serving. Bulking with this supplement is clearly intended for individuals engaged in high-intensity, high-performance training. However, it’s concerning that this high-calorie supplement lacks comprehensive nutrient coverage. If used as a meal replacement (which its high calorie count suggests), it fails to meet complete daily vitamin and nutrient requirements. The inclusion of sucralose is also problematic, as this artificial sweetener is known to cause digestive issues and has been linked to diabetes.
Who Should Use GNC Pro Performance Bulk 1340?
GNC Pro Performance Bulk 1340 is specifically designed for individuals engaged in high-performance, high-intensity athletic training. It targets athletes and individuals seeking to bulk up and build significant muscle mass. This supplement should not be used by those who don’t participate in intensive fitness regimens or high-level athletic activities. Always consult your physician before using supplements like this, even if they align with your activity level and lifestyle.
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Is GNC Pro Performance Bulk 1340 Safe?
This supplement is generally safe but presents some concerning issues. Sucralose can trigger numerous digestive problems including constipation, bloating, nausea, diarrhea, and indigestion. It has also been associated with diabetes and other preventable diseases. Regarding whey protein isolate, 50 grams represents a substantial protein dose that may cause muscle cramps, digestive complications, headaches, and nausea. Some users even experience significant hair loss with high whey protein consumption.
Always consult your doctor before taking high-calorie, high-carbohydrate supplements like this. This product may also contribute to weight gain and specific nutrient deficiencies depending on your diet and lifestyle patterns.
Alternatives To GNC Pro Performance Bulk 1340
While GNC Pro Performance Bulk 1340 offers solid protein support for athletes and fitness enthusiasts, superior alternatives exist. Several whey protein products, despite containing half the protein of Bulk 1340, deliver significantly fewer carbohydrates and calories per serving. This creates space for more nutrient-dense, high-protein meals that provide greater nutritional value than protein powder alone. My Protein USA Whey Protein represents an excellent whey protein option. This highly-rated supplement comes in whey isolate form, offering higher protein content with reduced fat and dairy. It provides a complete amino acid profile with only 90 calories per serving and contains 22 grams of protein per serving.
For those seeking plant-based alternatives, Truvani offers an excellent high-protein supplement. This protein powder delivers 20 grams of plant-based protein per serving without added stevia or artificial sweeteners. It receives high ratings and provides a healthier ingredient profile and protein source selection.
Where To Buy GNC Pro Performance Bulk 1340
GNC Pro Performance Bulk 1340 is available directly from the GNC website for $54.99.
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