The most abundant amino acid in the human body, shown to boost aerobic performance, promote a healthy gut, and help reaction time.

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Performance Nutrition

Glutamine (L-Glutamine) is the most abundant amino acid in the human body. It makes up 61% of your muscles' amino acid pool, and your body uses and depletes it rapidly — especially in active individuals who work out or play sports.

Being that L-Glutamine is essential in minimizing muscle breakdown, supporting endurance, smoothing digestion, and enhancing nutrient absorption; we have to ensure our L-Glutamine reservoirs are nice and topped off. That is difficult to do by simply eating amino-rich foods, which is why supplementing with L-Glutamine can be so essential.†


Support Muscle & Gut Health

Minimize Muscle



Athlete Training Athlete Carrying Weights Athlete Recovering
Dairy Free, Soy Free, Vegan

Glutamine Works

The Mightiest Amino

Glutamine’s impact can be felt before, during, and after exercise.

A 2015 study found that athletes taking glutamine prior to long distance running experienced less intestinal permeability, which ultimately aided in the suppression of inflammatory pathways.†

And even with insufficient water balance, athletes have experienced boosts in aerobic endurance, as glutamine can act as a fuel source for cells.†

Glutamine Tub

Glutamine can also assist with reaction time, with one study showing how basketball players out-shot a control group by over 12%. It also was found to lower muscle soreness, speeding up recovery from weight training, and even promoting immune health.†

No matter how hard you hit it, glutamine can get you back in the game faster and keep you there longer.

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NSF Certified
For Sport®

Onnit is committed to the highest standards of quality and efficacy in our products. We have independently certified many of our products to be competition safe, and we're actively pursuing as many certifications as possible.

NSF International is an independent and accredited non-governmental organization whose mission is to protect and improve global human health. We do this by facilitating the development of public health and safety standards through our Standards group, and by testing and certifying products and systems to those standards through our service groups.

Certified products and systems earn the NSF mark, which is respected by consumers, manufacturers, retailers and regulatory agencies. Deeply rooted in science, we are widely recognized as the “gold standard” for quality in such areas as water systems, food safety and health sciences including dietary supplements.

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Success is inevitable with solid nutrition

When you put in the work and pay attention to the details, seeing the results you want becomes not a question of if but when. It's just a waiting game. Because when your foundation is strong, adversity doesn't shake it—it merely becomes more brick and mortar to build with. Glutamine is a cornerstone in an athlete's supplementation, supporting gut health, performance, and recovery.†

The best in performance nutrition partnered with the best in athletic performance.

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Glutamine Tub

Glutamine Ingredients & Use

Glutamine is rated 4.8 out of 5 by 19.
Rated 5 out of 5 by from Great buy Good quality. Fine, soft, and fluffy.. unlike some brands that can get chalky.
Date published: 2020-05-27
Rated 5 out of 5 by from Great Amazing product! Can’t say enough great things about New Mood. Have only had positive results.
Date published: 2020-05-26
Rated 5 out of 5 by from The one and only. Very easy to drink, and it is pretty much flavorless.
Date published: 2020-05-22
Rated 5 out of 5 by from highly recommend definitely felt like I had a quicker recovery time between workouts and even set for set!
Date published: 2020-05-21
Rated 5 out of 5 by from Effective Have been taking the Glutamine with Creatine and Mineral Electrolytes about an hour before working out and definitely have noticed an uptick in endurance, reps, etc. Was previously not taking any of the three and there has been a marked improvement in capability since introducing this concoction.
Date published: 2020-05-07
Rated 5 out of 5 by from An Onnit Staple This is one of my Onnit staples. I always have it in my cabinet. Hard to track its effectiveness but what I can say is that when I have a lapse in supply, I definitely feel the difference in performance and recovery without it.
Date published: 2020-03-30
Rated 5 out of 5 by from Not disappointed So far i like it have one scoop a day fell pretty good feel better
Date published: 2020-03-14
Rated 5 out of 5 by from This stuff is awesome. I’m a climber. This stuff really makes the difference in my work outs. I’m able to push harder and climb longer. Little to no recovery after. Love it. I pair it with creatine as a pre work out.
Date published: 2020-03-08
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