HIGH-CALORIE MASS GAINER: GNC Pro Performance Bulk 1340 is a scientifically formulated mass gainer that delivers 1,340 calories per serving and 50g of high-quality protein to help you increase size and overall strength when used in conjunction with an exercise program. RECOVER WITH BCAA: Formula features 11g branched chain amino acids (BCAA) and glutamine, an important amino acid which is involved in protein synthesis and plays an important role in hydrating muscle cells. BANNED SUBSTANCE-FREE MASS GAINER: Bulk 1340 Mass Gainer has been tested for over 145 banned substances and is and certified Banned Substance.^ BACKED BY SCIENCE: Since 1935, GNC has been committed to meeting the highest standards of quality, safety and efficacy while applying the most up-to-date advances in nutritional science so you can live well. Branched Chain Amino Acids May Help Reduce Muscle Protein Breakdown.
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