• Affordable and effectively dosed. You only need 1 serving because you get mega ingredient doses, i.e. 1 g of agmatine per serving
  • The fruit punch flavor is average-tasting
8.5Overall Score

If you have an aversion towards stimulant based pre-workout supplements, or just looking to take a brief respite from them, Giant Pump might be what you’re looking for.

Supplement stacking is becoming increasingly popular, as people seek to get the strength and endurance boost from ingredients like creatine and betaine, as well as the pump benefits from ingredients like arginine and citrulline.

I recently had the chance to try out Giant Pump from Giant Sports, which was ostensibly designed with the exclusive purpose of improving muscle pumps.

Giant Pump immediately engenders some good will by providing a transparent ingredient label with specific ingredients and dosages. I’ve included all in the information for you here on the right, and below I’ll go through some of the main ingredients. giant pump nutrtion label

Agmatine/Norvaline Combo

I rarely come across a “pump” product these days that doesn’t feature at least agmatine. However, agmatine and norvaline are quickly becoming a standard ingredient combination because of how well they compliment each other.

Agmatine sulfate is a derivative of the amino acid arginine that stimulates the body to produce more nitric oxide. Research shows agmatine acts directly on endothelial cells to increase nitric oxide synthesis. [1]

Norvaline is an arginase inhibitor which works synergistically with agmatine to relax endothelial cells and further boost nitric oxide production. The flushes more blood, oxygen, and nutrients into muscles and facilitates greater growth and recovery.

Glutamine Nitrate and Glycerol

As the name implies, glutamine nitrate simply consists of the amino acid glutamine bonded with nitrate. Nitrates act as vasodilators, and dilate blood vessels for better blood flow.
Giant Pump also contains sodium glycerophosphate, which promotes muscle pumps through increased cellular water uptake.

Does Giant Pump Work?

Giant Pump is definitely a product with an identity, and does what it says it’s going to do. I had solid pumps from it, and it’s easily stackable with any of your stim-based supplements. I had the fruit punch flavor, and it mixed well without any graininess. I’m not a fan of fruit punch flavored supplements, but that being said, this isn’t bad. It’s an average fruit punch taste.

What’s more, Giant Pump provides you with some pretty effective dosages. For example, I’ve seen a lot of other non-stim pump products that only give you 500-700 mg of agmatine per serving. Here you’re getting a full gram of agmatine in every serving.

Also, you really only need to use one scoop with Giant Pump, making it a very affordable supplement.

[1] Morrissey JJ, Klahr S. Agmatine activation of nitric oxide synthase in endothelial cells.
Proc Assoc Am Physicians. 1997 Jan;109(1):51-7.

About The Author

Brian E. is from southern California and has worked for names like GNC and Vitamin Shoppe as a supplement expert and consultant. He currently lives in Utah and is studying marketing.

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