Mass XXX Chocolate by GNC Pro Performance
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Statements
DIRECTIONS: Mix 4 level scoops (198g) with 16 ounces of cold water or milk. Consume 1-2 servings daily.
CONTAINS: Milk and Soybeans.
Store in a cool, dry place.
GNC Pro Performance(R) Mass XXX(TM) is GNC's first clinically studied mass builder. Serious athletes know that while trying to achieve muscle mass and strength gains, proper sports nutrition is a must. GNC Pro Performance(R) Mass XXX(TM) has proven this concept and has shown to increase lean mass, muscular strength and endurance with 40% fewer repetitions.* It also improves efficiency for strength, endurance and mass gains.* GNC Pro Performance(R) Mass XXX(TM) is the right nutrition formula to help you meet your nutritional needs and keep you fueled while working towards gaining muscle mass and strength.
In an eight week randomized, double-blind, placebo-controlled study of healthy male volunteers, 18 subjects completed 3 sets resistance training (RT) daily + GNC Pro Performance(R) Mass XXX(TM), and 16 subjects performed 5 sets RT daily with no supplement. After eight weeks, subjects on GNC Pro Performance(R) Mass XXX(TM) showed equal gains in body weight, fat free mass (FFM), maximal muscle strength (MMS) and muscle endurance (ME) with only 3 sets RT per day compared to the control group who completed 5 sets RT per day.
In addition, GNC Pro Performance(R) Mass XXX(TM) contains a special blend of carbohydrates, the body's primary source of energy.
GNC Pro Performance(R) Mass XXX(TM) supplies key amino acids such as arginine and the Branched Chain Amino Acids (BCAA); isoleucine, leucine and valine.