MAN Sports ISO-AMINO BCAAs Review — Is Basic Better?

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MAN Sports is based in Texas and their name is actually an acronym: it stands for “metabolic augmenting nutrition” and they promise “hand-crafted, hand-bottled, microbatch” supplements — phrasing that makes them sound just a little like a craft beer company. Today I’m trying MAN Sports’ ISO-Amino BCAA supplement.

They do have an admirable focus on honesty in marketing, promising complete transparency and no “everything & the kitchen-sink” formulas that “only cushion the manufacturers wallet.”

So. What’s in it?

Shop MAN Sports ISO-AMINO here.

MAN Sports ISO-AMINO Nutrition and Ingredients

There are zero calories per serving. There’s no sodium and no electrolytes either. The main ingredients are just the five grams of branch chain amino acids themselves: instantized leucine (2.5 grams), isoleucine (1.25 grams), and valine (1.25 grams). That’s a 2:1:1 ratio, which is pretty common.

After that, there’s a variety of flavorings: citric acid, sucralose (also called Splenda®), acesulfame potassium, maltodextrin, and natural & artificial flavors. The only other ingredient is silicon dioxide, an anti-caking agent.

[see our top BCAA picks here]

MAN Sports ISO-AMINO BCAAs Ingredients

MAN Sports ISO-AMINO Benefits and Effectiveness

The branch chain amino acids themselves have been linked to increased endurance, muscle gain, and focus during workouts.

That’s no small feat, but that’s all that pretty much all this product offers (and that’s not necessarily a bad thing). There are no extras like l-arginine or glutamine or Vitamin B12 or anything like that.

It’s not an all-natural supplement, though. Although it’s free from artificial colors and dyes, it contains two artificial sweeteners (sucralose and acesulfame potassium) as well as maltodextrin, a type of carbohydrate made from starch that has a high glycemic index. However, it’s the final ingredient in the mix, so the glycemic spike is probably negligible.

It may be worth noting that it’s made in a facility that processes several major types of allergen: gluten, nuts, milk, egg, soy, shellfish, and so on. If you’re extremely allergic to these ingredients, it might not be for you.

MAN Sports ISO-AMINO Price

It costs just a little over $20 for 30 servings, so that’s 66 cents per serving or 13.2 cents per gram of BCAA. That’s a very competitive price. Most of the cheapest brands out there, like the BCAAs from Scivation and MusclePharm, cost about 11 cents per gram. So while MAN isn’t the cheapest you’ll find, it is very reasonably priced.


MAN Sports ISO-AMINO Taste

I picked up the Sour Batch flavor. Most BCAAs have sweet-and-sour flavors like Fruit Punch or Watermelon or Blue Raspberry. That’s because BCAAs are naturally pretty bitter and they need sour flavors to mask their taste.

What’s interesting about MAN’s Sour Batch flavor is that it just tastes like sweet-and-sour, without any extra fruitiness or flavoring, like Watermelon or Passionfruit.

It’s tasty though. If I had to pick a flavor it tastes like, I’d say it’s a little bit like Blue Raspberry.

The Takeaway

If you want a simple, reasonably priced, reasonably tasty branch chain amino acid powder, then ISO-AMINO is a good bet. Just don’t expect any bells and whistles — that’s simply not MAN’s style.


Per Serving: $0.66









Other Ingredients



  • Good 2:1:1 ratio of BCAAs
  • No soy or artificial colors
  • Inexpensive


  • No extra ingredients
  • Contains sucralose and acesulfame potassium
  • Made in a facility with a lot of alelrgens


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Nick is a content producer and journalist with over seven years’ experience reporting on four continents. His first articles about health were on a cholera outbreak in rural Kenya while he was reporting for a French humanitarian organization. His next writing job was covering the nightlife scene in Shanghai. He’s written on a lot of different kinds of things, but his passion for health ultimately led him to cover it full time.Shanghai was where he managed to publish his first health related article (it was on managing diarrhea), he then went on to produce a radio documentary about bodybuilding in Australia before he finished his Master’s degrees in Journalism and International Relations and headed to New York City. Here, he’s been writing on health full time for more than five years for outlets like Men's Health, VICE, and Popular Science.Nick’s interest in health kind of comes from an existential angle: how are we meant to live? How do we reach our potential? Does the body influence the mind? (Believe it or not, his politics Master’s focused on religion.)Questions like these took him through a lot of different areas of health and fitness like gymnastics, vegetarianism, kettlebell training, fasting, CrossFit, Paleo, and so on, until he realized (or decided) that strength training fit best with the ideas of continuous, measurable self improvement.At BarBend his writing focuses a little more on nutrition and long-form content with a heaping dose of strength training. His underlying belief is in the middle path: you don’t have to count every calorie and complete every workout in order to benefit from a healthy lifestyle and a stronger body. Plus, big traps are cool.