GNC AMP Mass XXX™
You can get even more out of every workout session when you make GNC AMP Mass XXX™ a part of your exercise routine. This protein-packed dietary supplement is clinically proven to help increase lean muscle mass with 40% fewer sets.◆* Plus, 3g each of Tri-MG Infusion™ and Creatine Matrix Blend help support athletic performance* and muscle protein synthesis^*, while micronized amino acids support key processes crucial to muscle growth and repair.^*
- Clinically proven to help increase lean muscle mass, weight, strength and endurance with 40% fewer sets◆*
- 50g of fast-, medium- and slow-digesting proteins, along with 11g of BCAA, 750 calories, plus carbohydrates and healthy fats for science-based nutrition, advanced muscle performance^* and to help maximize gains*
- Creatine Matrix Blend with 3 forms of creatine may help improve training results and supports muscle protein synthesis^*
- Tri-MG Infusion™ is an powerful blend that delivers relentless support for athletic performance*
- Micronized amino acids help fuel muscles* and support key processes crucial to the growth and repair of muscle^*
- Gluten-free dietary supplement
- Naturally- and artificially-flavored, delicious chocolate taste
◆In an eight-week, randomized, double-blind, placebo-controlled study of healthy male volunteers, 18 subjects completed 3 sets of resistance training (RT) daily + the macronutrient blend in Mass XXX™, and 16 subjects performed 5 sets RT daily with no supplement. After eight weeks, subjects on the supplement 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.
^When used in conjunction with an exercise program.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Soy Protein Isolate), Cocoa (Processed with Alkali) , Natural and Artificial Flavor, MCT (Medium Chain Triglycerides), Lecithin, Salt, Acesulfame Potassium, Sucralose
How To Use
Consult your physician to using this product if you are pregnant, nursing, under 18 years of age, taking medication, or have a medical condition. Discontinue use two weeks prior to surgery. , Keep out of reach of children.
Store in a cool dry place.
General Nutrition Corporation
Pittsburgh, PA 15222
3 weeks ago
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1 year ago
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2 months ago
However, the cost compared to how many servings you actually get (13, yes ONLY 13 servings) for $54 does NOT sit well with me. The disclaimer given for this product states this product was used for an 8 week study. If you quickly do the math based off the study, this product only adds gives you about 1125 calories a week (if you spread the 13 servings out between 8 weeks). If that's the range of additional weight you want to add on a weekly basis and are okay with the price, I'd recommend. I know there's other products for the same cost, that provide higher results.
3 months ago