Arnold Iron Mass Reviews

Arnold Iron Mass

Muscle Pharm is releasing a new line of bodybuilding supplements inspired by the iconic Arnold Schwarzenegger. One of the new products is Arnold Iron Mass, a weight gainer designed to pack on pounds of muscle without adding fat.

Let’s take a look at the ingredients in Arnold Iron Mass to see if they measure up to expectations.

Inside a Tub of Arnold Iron Mass

Of course, the amount of nutrients needed to build muscle varies depending on your workout intensity, but we can evaluate the quality of some of the ingredients here.

Sweet potato powder is about 20% carbs, 3% fiber, and 4% sugar. It is a good source of vitamin C, magnesium, and phosphorous, which contribute to immune health and muscle bulk. It also has no fat or cholesterol content. [1]

Hydrolyzed beef protein. Beef protein is considered one of the highest quality protein sources because of the “completeness” of the proteins. Since these proteins are hydrolyzed, there is a high protein concentration per gram. [2]

Lactoferrin regulates iron absorption. It also can be used as an antioxidant, to prevent bacterial infection, and to stimulate the immune system. [3]

Sunflower oil powder is rich in unsaturated fat, the healthiest form of fat. There is some evidence it lowers cholesterol and prevents constipation. [4]

Creatine monohydrate is a common supplement used to improve athletic performance and enhance muscle size. Most supplements provide 2-5 grams creatine as a constant daily dose, while others recommend creatine loading with a higher dose. Since this product contains creatine, it is likely it contains a lower creatine dose. [5]

BCAAs are amino acids that work together to build muscle mass and prevent muscle breakdown during vigorous exercise. This is especially important in a weight gainer since sometimes the body tries to use muscle as fuel rather than fat during exercise. [6]

The BCAAs are present in a patent pending 3:1:2 ratio rather than the more traditional 2:1:1 ratio of leucine, isoleucine, and valine. [7]

Protease is an enzyme that catalyzes protein peptide breakdown. It aids in digesting the many proteins contained in Iron Mass. [8]

Price and Availability

The entire Arnold line is very popular, and it’s available from most retailers. I looked for the best prices and deals for Iron Mass:

Is Arnold Iron Mass Worth it?

I know many athletes choose a lower-quality protein powder when bulking, so they consume a lot without worrying about price. However, for those conscious of what they put in their body, Arnold Iron Mass seems like a quality option.

Before I start singing praises of Arnold’s namesake supplement, I recommend checking out other customer reviews. Right now, some of the Arnold Schwarzenegger series are not released to the public, so there is little consumer feedback. I recommend waiting until more information is available before investing in Arnold products.

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[1] “Basic Report: 11507, Sweet potato, raw, unprepared.” Agricultural Research Service. Available from:

[2] Hoffman JR, Falvo MJ. “Protein—Which is Best?” Journal of Sports Science and Medicine. 28 Jun 2004.(3):118-130. Available from:

[3] “Lactoferrin.” WebMD. Available from:

[4] “Sunflower Oil.” WebMD. Available from:

[5] Shao A, Hathcock JN. “Risk assessment for creatine monohydrate.” Regulatory Toxicology and Pharmacology. Aug 2006; 45(3):242-51. Available from:

[6] Kimball SR, Jefferson LS. “Signaling Pathways and Molecular Mechanisms through which Branched-Chain Amino Acids Mediate Translational Control of Protein Synthesis.” Journal of Decision. 2006 Jan;136(1):2275-2315. Available from:

[7] Campbell B, Kreider R, Ziegenfuss, La Bounty P, Roberts M, Burke D, Landis J, Lopez H, Antontio J. “International Society of Sports Nutrition position stand: protein and exercise.” Journal of the International Society of Sports Nutrition. 26 Sep 2007. Vol. 4. Available from:

[8] “Protease.” 2013. Available from: