MuscleMeds, Carnivor Mass, Anabolic Beef Protein Gainer, Chocolate Peanut Butter, 6 lbs (2,744 g)



Only 9 left!


  • Muscle Building Beef Protein
  • Performance Technologies
  • Clinically Tested#
  • Anabolic Beef Protein Gainer
  • Hydrolyzed Beef Protein Isolate
  • High Impact Reactive Carbs
  • Helps Insulin Amplification and Signaling
  • Loaded with 5 g Creatine and BCAAs
  • Informed-Choice Trusted by Sport
  • Dietary Supplement
  • Naturally and Artificially Flavored
  • Sugar Free
  • Cholesterol Free
  • Lactose Free
  • Gluten Free
  • Only 2 Grams Fat
  • 50 Grams Protein!
  • Made From 100% Beef Protein
  • No Gelatin

The World's First Highly Anabolic All Beef Mass Builder!

Welcome to a New Era in Mass Building Supplementation with Carnivor Mass - The Clinically Tested Beef Protein Mass Gainer!+

The days of loading your body with empty fat storing calories are over! Calories don't stimulate muscle growth - anabolism does! High-speed macronutrient delivery with near-perfect insulin optimization sets Carnivor Mass apart from all others. Research shows that fast proteins combined with elevated insulin equals explosive muscle anabolism (growth) when combined with resistance training. Carnivor Mass makes this possible with MuscleMeds world famous Carnivor Beef Protein Isolate (BPI) acting in combination with iSpike, a dual insulin release/insulin signal amplifying technology not found in any other supplement.

Beef Protein Isolate - backed by research to build muscle! Beef has proven itself as a favorite anabolic protein source for many athletes and champion bodybuilders. Clinical research shows that hard training male athletes supplementing with Carnivor BPI gained an average of 7.7 lbs. of muscle mass in just 8 weeks (a 6.4% average increase), while the placebo group only increased lean muscle body mass by 0.7 lbs. # MuscleMeds hydrolyzed Carnivor Beef Protein Isolate (BPI) provides the power of beef at the speed of whey, delivering rapid absorption of high concentrations of amino acids without the lactose, allergies, fat, cholesterol and other problems associated with dairy product. This pure beef protein isolate is also 350% more concentrated in amino acids than steak and more concentrated than whey. Plus it's enhanced with 5 grams of creatine and additional BCAAs for even great anabolic power!

iSpike is an exclusive MuscleMeds technology designed to harness the full anabolic impact of insulin. Using fast-acting, reactive-enhanced microparticulated carbs and insulin potentiators chromium and d-pinitol (a cyclitol), iSpike causes a rapid elevation in insulin while simultaneously amplifying insulin signaling at the muscle receptors to potentiate maximum muscle growth, glycogen replenishment and tissue regeneration. + iSpike works so fat and is so powerful, it helps stimulate anabolism within 30 minutes for your first delicious serving. This is the desired anabolic effect you want from your mass gain and it can only be achieved with Carnivor Mass...the premium mass builder from MuscleMeds!

Informed-Choice Certified

Trusted to be clean, Carnivor Mass is Informed-Choice Certified, tested for over 200 banned substances on the WADA list, and produced in a GMP Compliant Facility. You can be confident you are getting the highest quality product available.

#Sharp et al., 2017. Journal of Strength and Conditioning Research. Muscle mass data based on male subjects. Weight and strength gains compared to baseline. Results based on consuming 46 grams of beef protein daily. Female subjects also experienced an increase in lean body mass. + Within the normal range.

Suggested Use

Add 16 fl oz of water to a shaker bottle, blender or other container. Add 4 scoops of Carnivor Mass. Mix or blend until the desired texture is achieved before drinking. For a thicker, sweeter shake, add less water. For a thinner shake, add more water. Drink 1-2 shakes daily.

Other Ingredients

iSpike technology [consisting of insulin-release-amplifying reactive carbohydrate system (microparticluated maltodextrin, micronparticulated waxy maize, amylase glucoamylase), and insulin-signal-amplifying system (agaricus blazei (fruiting body), chromium picolinate, 4-hydroxyisoleucine, d-pinitol)], carnivor mass bpa blend [consisting of hydrolyzed beef protein isolate, creatine monohydrate, l-glutamine, branched chain amino acids (bcaas: l-leucine, l-valine, l-isoleucine) and anabolic nitrogen retention technology intermediates: gkg (glutamine-alpha-ketoglutarate), okg (ornithine-alpha-ketoglutarate), akg (alpha-ketoglutarate) and kic (alpha-ketoisocaproate)], cocoa, natural and artificially flavor, partially defatted peanut flower, mct's (medium chain triglycerides), salt, gum blend (cellulose, xanthan, carrageenan), antifoam (propylene glycol mono - and diesters of fats and fatty acids, mono glyceride of fatty acids, polyglycerol oleate, rdb soybean oil, dimethylpolysiloxane, hydrophobic silica, polysorbate 60k, sorbitan monostearate, contains less than 2% of paraffin), acesulfame k, sucralose.

Contains peanuts.


  • Keep out of reach of children
  • Store at 10º-30ºC (50º-86ºF)
  • Protect form heat, light and moisture
  • Do not purchase if seal is broken


While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.

Supplement Facts
Serving Size: 4 scoops (196 g)
Serving Per Container: Approximately 14
  Amount Per Serving %Daily Value
Calories 690  
Calories from Fat 10  
Total Fat 1.5 g 2%†
Cholesterol 0 mg 0%†
Total Carbohydrate 125 g 42%†
Dietary Fiber 1 g 5%†
Sugars 0 g
Protein 50 g 100%†
Chromium (as Chromium 454 Bio-Organic Yeast Matrix) 200 mcg 167%
Sodium 500 mg 21%
Potassium 150 mg 4%
† Percent Daily Values are based on a 2,000 calorie diet.
‡ Daily Value not established.