When Pro JYM was released in 2015 it quickly became the world’s #1 selling whey protein powder. My Pro JYM review sees how it fares all these years later…

Russ Howe PTI

This article was written by Russ Howe PTI, and was last updated on October 24th, 2023.

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When Pro JYM was released in 2015 it quickly became the world’s #1 selling whey protein powder.

Even as a relatively new brand, the level of trust placed in Dr. Jim Stoppani’s supplement knowledge was so high that it eased past competitors and became the new undisputed champion.

But how does Pro JYM stand up in 2021?

Today we will find out, because my official Pro JYM review will break down every aspect of JYM’s flagship whey protein to decide if it’s still on top of the world.

(FYI: No product has ever got a 5 star review, maybe this will be the first.)

Table of Contents

The Crazy Story Of Pro JYM

Pro JYM review

I know you guys like how unbiased and in-depth my reviews are, so I’ve got a real treat for you today!

You see, Pro JYM has had a storied history so far.

When Jim Stoppani launched the brand in 2013, he literally changed the supplement game forever. Featuring regularly in Muscle & Fitness magazine, he built a reputation as a reliable source of information for anything supplement-related (heck, I’d probably have let him bang my girlfriend if he’d said it would improve my barbell squat!). So it made perfect sense when the mighty Bodybuilding.com saw an opportunity to partner with Jim Stoppani and create a supplement brand with his name on it.

That’s when JYM Supplement Science was born.

Using open labels and high quality ingredients, JYM became a premium-grade supplement brand you’d happily pay extra for, and it sold FAST.

The first release was Pre JYM, which still stands as a top pre workout even now, and this was quickly followed by Pro JYM.


But shortly after the release of Pro JYM the following year, things started to get very messy…

First, it was suggested in an article from PricePlow that Dr. Jim Stoppani didn’t even formulate Pro JYM, and that Bodybuilding.com had simply re-packaged their old Protogen whey protein shake with a new name and an image of the doc, then bumped the price up.

“Strange, right? It’s like someone took the formula for Protogen, lowered some of the doses, then increased the price to create Pro JYM!” – PricePlow

This sounds crazy at first – until you take a look at the labels:

Pro Jym vs Protogen

Unfortunately, things went from bad to worse…

Shortly after the release of Pro JYM, it was hailed as “the only whey protein supplement in the world which doesn’t use a proprietary blend.”

Dr. Stoppani has been very keen to repeat this claim over the years:

“When I tell people that Pro JYM is the only non-proprietary protein powder blend available today, some state that a few other companies are already doing what I am doing.

But they’re not.

A few other companies are listing the percent of each type of protein that is in their protein blend. For example, a protein powder blend that is whey, casein, and egg protein might list that it’s comprised of 40% whey, 40% casein, and 20% egg protein… but that is NOT listing the exact amount of each one of those proteins!

Pro JYM is the ONLY protein powder blend that lets you know EXACTLY how much of each type of protein you are getting in every serving. If your protein powder blend is NOT Pro Jym, then it’s a proprietary blend!”

Oh my goodness. Where do I start with this?

Let’s begin by taking a look at the nutrition label for Pro JYM.

The label is quite transparent, and it does indeed list the amount of most major ingredients in the formula, but not all of them. Don’t get me wrong – I’ve seen a LOT worse, but this is still technically a proprietary blend.

pro jym review

Also, I f**king hate it when supplement brands badmouth other brands for no other reason than self-promotion.

So let me jump to the defence of every other company in the fitness world right now by pointing out that there are definitely companies who do not use proprietary blends. Jim is talking absolute s**t when he claims Pro JYM is the only one.

NutraBio are a good example. They’ve been around since 1996 and have been releasing very high quality products with no proprietary blends. In fact, the labels are even more transparent than those of JYM.

When one of Jim’s own followers pulled him up on this claim, the doc published this absurdly silly video (below) in which he actually doubles down on his belief that Pro JYM is the only product without a proprietary blend (despite being proven wrong), and then claimed that nobody even cares if smaller companies are doing it because… well… they don’t matter.

Holy f**k.

But wait… it gets even better.

The unprovoked attack from Jim resulted in one of the most beautiful comebacks in YouTube history, when well-respected NutraBio owner Mark Glazier decided he’d heard enough…

(WARNING: If you watch the video below, you’ll want to buy NutraBio, not JYM.)

As if we needed things to get any crazier, Jim and Bodybuilding.com then had a huge public disagreement about who the actual owner of JYM Supplement Science was, and eventually Dr. Stoppani relaunched the entire brand with GNC. The row lasted nearly 18 months, before JYM once again returned to Bodybuilding.com.


As you can see, it’s been a bumpy ride so far for JYM!

Pro JYM Review: The Good & The Bad


I hope the craziness above made for some entertaining reading. It took me f**king ages.

So how does Pro JYM stack up?

Well, a serving of Pro JYM provides us with:

  • 24g protein
  • 7g carbohydrates
  • 3g fat

The amount of protein in each scoop is great.

A 2009 trial published in the American Journal of Clinical Nutrition found that a serving size of 20 grams of protein creates almost as much of an anabolic spike as a dose twice the size, so the serving size here falls right into the “sweet spot” for muscle growth. (1)

pro jym

But one thing which isn’t so great is the protein-per-serving ratio.

Ideally this number should be high because it means most of your scoop is protein (the reason you bought it). For instance, if your scoop is 30 grams and you have 24g protein, that’s 80% protein-per-serving. A scoop of Pro JYM is a whopping 40 grams, but with only 24 grams of protein, that’s just 69% protein-per-serving.

For such an expensive shake, that’s LOW AS F**K.

The rest of the scoop consists of 7g carbohydrates, 3g fat, and a f**k-tonne of sweeteners and thickeners which have been added to improve the taste – and fair play to them, it is delicious!

Jim Stoppani Pro Jym review

When we dig into the formula of Pro JYM we can see there is no whey protein concentrate.

Whey protein concentrate is a popular ingredient, but if you’ve ever experienced issues with lactose you’ll appreciate the fact that Pro JYM opts for whey protein isolate instead.

You can also avoid the lactose issues of WPC by switching to a a higher grade of whey protein concentrate, but isolate is even better.

Pro JYM contains a blend of whey protein isolate, casein, and egg. This is great! By using a protein blend you will have a slower release of amino acids for your muscles to gobble up over the course of the day, and studies suggest this is slightly more effective for muscle growth versus using whey alone. (2, 3)

This solid formula and the inclusion of whey protein isolate is a key factor in cementing Pro JYM as a “premium” protein powder. It’s well known that whey protein concentrate is dirt cheap, and most companies often stuff it in over 90% of their so-called “blend”. For instance, if we compared the formula of Pro JYM vs Gold Standard, or Pro JYM vs Nitro Tech, we can see there is a BIG difference in quality thanks to this blend.

Pro JYM Review: Russ’ Rating

pro jym review

As my Pro JYM review comes to an end, I must deliver a score.

Overall I consider Pro JYM to be a solid product. It even appeared in my list of the top 5 whey protein supplements of 2020, so I want to give credit to Dr. Jim Stoppani for creating a great blend of fast-release, slow-release, and even-slower-release protein, resulting in a product that’s great for building muscle and tastes like a damn milkshake!

However, Pro JYM does not dominate the industry any more, because there are several other manufacturers who have produced superior whey protein blends since it was released, like NutraBio Muscle Matrix (whoops!).

Pro JYM gets a 3 star rating from me.

For the absolute best price on Pro JYM I recommend grabbing it from here.



  1. Moore D. R., et al. Ingested protein dose response of muscle and albumin protein synthesis after resistance exercise in young men. Am J Clin Nutr (2009).
  2. Soop M., et al. Coingestion of whey protein and casein in a mixed meal: demonstration of a more sustained anabolic effect of casein. Am J Physiol Endocrinol Metab (2012).
  3. Reidy P. T., et al. Protein blend ingestion following resistance exercise promotes human muscle protein synthesis. J Nutr (2013).

Who Is Russ Howe PTI?


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His work has been featured in Men’s Fitness magazine, and the content on this website led to him being voted one of the world’s top 50 fat loss coaches by HuffPost.

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