In the world of fitness and nutrition, glutamine has emerged as a popular supplement for athletes and fitness enthusiasts alike. Recognized for its potential benefits in muscle recovery, immune support, and gut health, it’s no wonder that the demand for high-quality glutamine supplements is on the rise.
With countless options available on the market, it can be challenging to determine which product is the right fit for your needs. In this article, we’ve done the legwork for you by compiling a list of the best glutamine supplements available, taking into consideration factors such as purity, effectiveness, and customer satisfaction.
Let’s get started.
We Know Supplements VERY Well
As experienced nutrition coaches, personal trainers, weightlifting instructors, and athletes, we’re passionate about the intricacies of fitness and nutrition. We recognize that the jargon can be perplexing and daunting for many.
That’s why we’re dedicated to conducting thorough research and personally testing supplements for efficacy, side effects, flavor, and consistency. With our comprehensive research and practical evaluations, we’re able to confidently provide recommendations tailored to your needs.
Topping off our list, we have an excellent glutamine supplement that also uses that combines the power of Glutamine with the muscle-building and recovery you get from BCAAs.
And they didn’t skimp on the Glutamine to make room for the BCAAs either. This bad boy is loaded with 5 grams of glutamine along with 8 grams of BCAAs..
Every serving delivers a 2:1:1 ratio of leucine, isoleucine, and valine, consisting of four grams of l-leucine, two grams of l-isoleucine, and two grams of l-valine. These three amino acids constitute BCAAs, and this proportion is frequently regarded as the optimal benchmark for BCAA supplement ratios.
BCAA Glutamine also contains one gram of coconut water powder and a large 1,535 milligrams of vitamin C. There is also citric acid, natural flavor, and stevia.
The Glutamine supplement comes in at just ten calories per serving and does not use any artificial sweeteners or flavoring.
There are four flavors to choose from. The Sour Green Apple was very good, I haven’t tried the others, though, so I can’t say if they are any good.
This one is more expensive than the others on the list, but you are essentially getting two supplements in one, so it’s worth it.
If you are looking for a pure Glutamine supplement that is quick-absorbing will like Glutamine by Kaged Muscle.
When we say this supplement is just pure Glutamine we mean it. The only ingredient in this supplement is 5 grams of fermented L-Glutamine. That’s it. There isn’t even any flavoring or anything else.
Something else you are going to like about this supplement is that you get 100 servings per container. That means you could take this L-Glutamine every day and it would last you over 3 months. Now you know why this is also our selection for the “Best Glutamine on a Budget.”
This Glutamine is also vegan-friendly and is 3rd party tested. On top of that, it is also Informed Sport-Certified.
This Glutamine only comes in unflavored. You can mix it with your favorite post-post workout supplement or sports drink.
Those of you that are interested in a micronized Glutamine supplement should checkoutMicronozed L-Glutamine by Swolverine.
Why get micronized Glutamine?
Because glutamine that is micronized into a very fine powder is more easily absorbed by the body and also dissolves easier in water,
This is another glutamine supplement that doesn’t have any bells and whistles. It’s just straight Glutamine, 5 grams per serving, and nothing else. No flavoring, no nothing.
The micronized powder is unflavored, so you can mix it into your favorite drink, and you are all set.
Each container has 60 servings, so it will last you a while.
Price-wise, this one is above average, but you can subscribe and save 15%, which is pretty nice.
This is another straightforward glutamine supplement that absorbs easier and is one you will want to consider.
When adding a supplement to your morning routine and don’t feel like choking down capsules, then the Glutamine Powder from Naked Nutrition is an excellent choice.
This is another no-frills glutamine supplement that is just straight glutamine and nothing else.
Something you will like about this glutamine supplement is that each tub contains a whopping 200 servings. That has the potential to last a very long time.
This is another Glutamine supplement that isn’t flavored so you can mix it with whatever drink you like or add it to a protein shake.
This Glutamine has also been third-party tested for heavy metals and is free of fillers or anything artificial.
Pricewise, this one is above average, but as we mentioned there are 200 servings per tub so the cost per serving is actually pretty low.
They also have a subscription plan that will save you 20%, which is the most savings I have seen for a subscription in the supplement industry.
Overall this is another really nice Glutamine supplement that is pretty wallet-friendly.
If prioritizing gut health is high on your list, you may consider increasing your consumption of n-acetyl glutamine, an analogue of the typical l-glutamine that is said to be more easily digestible.
To make this goal attainable, Bulk Supplements has created N-Acetyl L-Glutamine, packed with 500 milligrams of n-acetyl l-glutamine while excluding additives, sugar, soy, or gluten.
What even is N-Acetyl L-Glutamine?
It’s a modified form of glutamine. It contains an acetyl group attached to the amino group of glutamine. This means it may be more easily absorbed by the body and is believed to support gastrointestinal health,
Some of you may like that you can get this product in both powder form and capsule form which is more portable.
With absolutely no additional substances, every dose of Bulk Supplements N-Acetyl L-Glutamine offers 500 milligrams of n-acetyl l-glutamine. True to the quality of Bulk Supplements’ line, this particular product is completely devoid of soy, dairy, yeast, sugar, additives, or gluten.
It undergoes rigorous third-party purity testing, adheres to cGMP standards during manufacturing, and has been verified in the laboratory. The 250-gram package contains a generous 500 servings, ensuring its longevity even with multiple daily uses.
If you prefer the convenience of shopping on Amazon the Glutamine 5000 from Evlution Nutrition could be the one for you.
This product is made in the USA and also doesn’t have any fillers or additives and nothing artificial.’
Evlution Nutrition’s Glutamine 5000 is unflavored, making it easy to mix with your favorite beverages or shakes without altering their taste. It is manufactured following high-quality standards and is free from any unnecessary additives or fillers.
Like most of the Glutamine supplements on this list, Glutamine 5000 is pretty straightforward. You can also get this supplement in capsule form instead of powder form which some find more convenient.
Pricewise this one isn’t too bad either. The tubs are on the less expensive side and you get 60 servings per tub which isn’t bad.
Overall this is another solid Glutamine supplement for you to consider.
Now Supplements L-Glutamine capsules are an excellent choice for those seeking a convenient source of glutamine in capsule form. These capsules provide 500 milligrams of L-Glutamine per serving, which is quite a bit less than the 5000 mg you get from most powders. That said; it’s a lot easier to carry a few capsules around than it is an entire tub of powder.
Now Supplements is a reputable brand known for its commitment to producing decent supplements that are lower in price. Their L-Glutamine capsules are manufactured following strict quality control standards, ensuring that you receive a clean and potent product.
These L-Glutamine capsules are free from unnecessary additives, fillers, and artificial ingredients, providing a more natural and pure supplement experience. The capsules are also vegan-friendly and when I tested them they went down pretty easily with water.
In summary, Now Supplements L-Glutamine capsules offer a high-quality, convenient, and pure option for those looking to incorporate glutamine into their supplement regimen. With their commitment to quality and multiple health benefits, they stand out as the best choice for glutamine capsules.
Rounding out our list, we have L Glutamine Fermented as the best-fermented glutamine.
What is the difference between regular glutamine and fermented glutamine?
The main difference is in how the Glutamine is made. Fermented Glutamine is derived from a natural fermentation process while regular glutamine is made with chemicals. Fermented glutamine is considered a more natural, environmentally friendly, and potentially purer option compared to its chemically synthesized counterpart.
When I tested this glutamine it mixed very well. This is another unflavored glutamine so you can just mix it with your favorite drink and not even know it is in there.
Fermented L-Glutamine is known to aid in muscle growth, recovery, and immune function. By choosing Jacked Factory’s L-Glutamine Fermented, you’re effectively supporting these essential aspects of your overall health and fitness goals.
Pricewise this one is also a pretty good deal. It is on the inexpensive side and has 100 servings per container which i’m sure your wallet will like.
Lastly, Jacked Factory is a reputable brand dedicated to producing high-quality and effective supplements, ensuring that you receive a reliable product designed to support your health and performance. In conclusion, L-Glutamine Fermented by Jacked Factory is an exceptional choice for those looking for the best-fermented glutamine supplement, thanks to its natural fermentation process, commitment to purity, and multiple health benefits.
Believe it or not, this isn’t just a random list, we used several criteria to decide what the best glutamine supplements are.\
These criteria include:
Ingredients
We carefully examined the labels of each supplement to verify the absence of unnecessary or undesirable ingredients. Some manufacturers may add additives for texture or flavor, and when this occurs, we provide this information for your consideration, saving you the effort of searching for it yourself.
It’s crucial to be aware of what you’re consuming when taking supplements. We evaluated each product for third-party purity testing and gave more weight to those that had undergone such testing compared to those that hadn’t. We also indicate when third-party testing is performed for your convenience.
Price
One nice thing is that Glutamine isn’t as expensive as a lot of other supplements out there. That said the number of doses per container can vary wildly so the price may not be as good or bad as it sounds when you consider how many doses you are getting.
Form of Glutamine
For some people, deciding between capsules and powders might hinge on convenience. Powders provide greater precision in measuring the supplement intake but can be inconvenient to mix into a drink frequently. In contrast, capsules may be slightly more costly per gram, but they offer increased convenience for those with busy morning routines or who are constantly on the move.
Pills may not always be suitable for vegans and vegetarians due to the presence of gelatin in many cases, making powders a more attractive option (unless it’s explicitly stated that the product uses vegetarian-friendly capsules). Although most glutamine supplements on this list come in powder form, we’ve also included a few capsule-based options for those who prefer them.
Type of Glutamine
We have several different types of Glutamine on the list for you to choose from. There is micronized, fermented, mixed with BCAAs and N-Acetyl L-Glutamine. All of these have their pros and cons depending on what you are looking for, some variations are said to absorbe faster and mix better.
Glutamine vs BCAAs: What’s the Difference?
Glutamine and BCAAs (Branched-Chain Amino Acids) are both well-known in the fitness community, and they’ve earned their spot in gym bags all over the world. But what sets them apart, and which one should you choose? Allow us to break it down for you.
Glutamine: It’s the most abundant amino acid in our bodies, and it plays a starring role in muscle recovery, immune function, and gut health. When you’re pushing your limits in the gym, your body’s glutamine levels can take a hit, making supplementation a no-brainer for those looking to bounce back faster and stronger!
BCAAs: These bad boys consist of three essential amino acids – leucine, isoleucine, and valine. They’re the superheroes of muscle building, helping to increase protein synthesis, reduce muscle breakdown, and boost endurance. If you want to level up your gains and keep fatigue at bay, BCAAs are your trusty sidekicks.
Now that we’ve introduced our contenders, let’s talk about their differences:
Primary Focus: Glutamine is all about recovery and immune support, while BCAAs are laser-focused on muscle growth and endurance
Timing: Glutamine is typically taken post-workout to aid in muscle repair, whereas BCAAs can be consumed pre, intra, or post-workout to fuel your performance and recovery
Structure: Glutamine is a single amino acid, while BCAAs are a trio of essential amino acids working together like a dream team
So, which one should you choose? The answer depends on your fitness goals! If recovery and immune support are what you’re after, glutamine might be your go-to supplement. On the other hand, if muscle growth and endurance are your top priorities, BCAAs could be your perfect match.
But hey, why not have the best of both worlds? Combining glutamine and BCAAs can create a powerful synergy, helping you achieve peak performance and optimal recovery.
Benefits of Glutamine
Helps With Protein Synthesis
Glutamine plays a crucial role in protein synthesis by serving as a nitrogen donor. As an abundant amino acid in the body, it helps maintain a positive nitrogen balance, which is essential for muscle growth and repair. By contributing to the nitrogen pool, glutamine ensures that there is a sufficient supply of nitrogen for the synthesis of new proteins, thus aiding in muscle recovery and growth.[1]
It also appears to inhibit protein breakdown of soluble, rather than myofibrillar, protein in muscle.[2]
Immunity
Glutamine plays a significant part in your body by bolstering your immune system. When faced with illness or injury, glutamine serves as one of the amino acids essential for maintaining good health. Adequate dietary protein is necessary for your body to carry out effective immune responses, and glutamine holds a vital position in this process. Studies indicate that having a ready supply of glutamine enables the activation and replication of white blood cells and other immune cells, which are crucial in combating injury and infection. (3)
Given its function in bolstering the immune system, your body may resort to breaking down protein sources, such as muscle tissue, during emergency situations when extra immune support is required. In cases of severe illness or injury, glutamine supplements could potentially help prevent your body from breaking down muscle mass to meet its needs.
Improves Gut Health
Ensuring an adequate amount of glutamine in your diet can also contribute to improved gut health. Studies indicate that this amino acid plays a vital role in repairing and maintaining the gut barrier in your body, helping to prevent infections.(4) Glutamine may also support intestinal cell proliferation, making it a beneficial amino acid in preventing and treating a range of gastrointestinal disorders.
Maintaining overall health, including gut health, is essential for long-term, sustainable training, just as it is crucial to keep your muscles in good shape.
Helps With Muscle Recovery
Glutamine can also play a role in accelerating muscle recovery. For bodybuilders seeking enhanced recovery after intense lifting sessions, glutamine could be beneficial, as L-glutamine supplementation has been shown to promote faster recuperation of peak torque.(5) In simpler terms, following a demanding workout, your muscles may regain their maximum strength and efficiency more rapidly. The same study discovered that L-glutamine supplements might help reduce muscle soreness, which is excellent news for those aiming to fit in additional training sessions.
How Much Does Glutamine Cost?
The cost of glutamine supplements can vary depending on factors such as brand, quality, quantity, and form (powder or capsules). Generally, you can expect to pay anywhere from $10 to $40 for a container of glutamine.
For powder form, prices typically range from $0.50 to $1.00 per ounce. Capsules tend to be slightly more expensive due to the convenience factor, with prices ranging from $0.10 to $0.25 per capsule.
Keep in mind that prices may fluctuate based on factors like sales, discounts, and where you purchase the supplement. It’s always a good idea to compare prices across different retailers and read reviews to ensure you’re getting the best value for your money.
Considerations Before Buying Glutamine
While L-glutamine is a naturally occurring amino acid, it’s advisable to begin cautiously if you’re incorporating it into your diet through supplements for the first time. You might consider starting with half-sized servings for a few days, allowing your body to adjust to the new supplement. Additionally, always consult a healthcare professional before introducing glutamine to your diet. Here are some other aspects to keep in mind before investing in glutamine supplements.
Training Goals
If you are looking to get huge and pack on as much muscle as possible then glutamine alone isn’t gonna do it. But if you are looking to promote gut health and boost your immune system while improving recovery then glutamine could be for you.
Moreover, if you’re recovering from a severe injury or illness and your training goal is to safely resume your routine, glutamine could potentially help facilitate your transition back into the program. Remember to take your personal objectives into account before determining whether glutamine is a suitable addition for you.
Diet
If you eat a lot of beef, tofu, skim milk, or eggs, chances are that you have a decent amount of glutamine in your diet. Nevertheless, if you have recently experienced a significant injury or illness, follow a vegan diet with reduced soy consumption, or aim to minimize dairy intake, incorporating a glutamine supplement into your regimen could assist in fulfilling your amino acid requirements. In such cases, it is crucial to consult a healthcare professional who can assess your specific needs for daily glutamine supplementation.
Form And Flavor
If you hate swallowing capsules you are in luck. Most glutamine comes in powder form. That said if you like to portability of capsules you are also in luck. The best capsules are listed above.
If flavor is important then your choices are more limited. Most glutamine powders are unflavored. Only one on our list has any flavoring, and it is our top choice.
What is the Best Form of Glutamine to Take?
L-glutamine and glutamine peptides are the two commonly available forms of glutamine. L-glutamine is widely used and easily absorbed, while glutamine peptides offer improved stability and absorption. Choosing between them depends on individual preferences and specific health conditions.
There is also micronized, fermented NAcytil, and so on. In my experience, there isn’t really all that much difference really when it comes to the form. Most of that is just marketing.
Is it Better to Take Glutamine or L-Glutamine?
L-Glutamine is actually the more accurate term for the amino acid commonly referred to as glutamine. They are the same substance, but L-Glutamine specifically refers to the biologically active form of glutamine that is found in food and supplements. So, when you take a glutamine supplement, you are essentially taking L-Glutamine. There’s no need to choose between the two, as they refer to the same compound.
Can I take Glutamine Every Day?
Yes, you can take L-glutamine every day, but it’s essential to follow the recommended dosage provided by the supplement manufacturer or your healthcare professional. L-glutamine is generally considered safe when taken in appropriate amounts. However, it’s always a good idea to consult with a medical professional before starting any new supplement, especially if you have pre-existing health conditions or are taking medications. They can guide you on the proper dosage and duration for your specific needs.
How Long Does it Take to See the Benefits Of Glutamine?
The time it takes to see the benefits of glutamine can vary depending on factors such as individual body chemistry, the specific reason for taking the supplement, and the dosage. Some people may experience benefits within a few days, while others might take several weeks or even months.
For instance, in cases of muscle recovery and athletic performance, improvements might be noticed within a week or two. However, for leaky gut or other digestive issues, it could take a few weeks or more to observe significant changes.
It’s important to follow the recommended dosage and consult a healthcare professional for personalized advice on how long you should take glutamine before expecting noticeable results.
Final Word
In conclusion, glutamine plays a crucial role in various bodily functions, including muscle recovery, immune support, and digestive health. Choosing the best glutamine supplement on the market can significantly enhance your overall well-being and help you achieve your health goals.
Be sure to consider factors such as product quality, brand reputation, and the specific form of glutamine when making your selection. Always consult with a healthcare professional before starting any new supplement regimen to ensure it’s appropriate for your individual needs.
References
MacLennan PA, Brown RA, Rennie MJ. A positive relationship between protein synthetic rate and intracellular glutamine concentration in perfused rat skeletal muscle. FEBS Lett. 1987 May 4;215(1):187-91. doi: 10.1016/0014-5793(87)80139-4. PMID: 2883028.
MacLennan PA, Smith K, Weryk B, Watt PW, Rennie MJ. Inhibition of protein breakdown by glutamine in perfused rat skeletal muscle. FEBS Lett. 1988 Sep 12;237(1-2):133-6. doi: 10.1016/0014-5793(88)80186-8. PMID: 3169234.
Calder PC, Yaqoob P. Glutamine and the immune system. Amino Acids. 1999;17(3):227-41. doi: 10.1007/BF01366922. PMID: 10582122.
Rao R, Samak G. Role of Glutamine in Protection of Intestinal Epithelial Tight Junctions. J Epithel Biol Pharmacol. 2012 Jan;5(Suppl 1-M7):47-54. doi: 10.2174/1875044301205010047. PMID: 25810794; PMCID: PMC4369670.
Legault Z, Bagnall N, Kimmerly DS. The Influence of Oral L-Glutamine Supplementation on Muscle Strength Recovery and Soreness Following Unilateral Knee Extension Eccentric Exercise. Int J Sport Nutr Exerc Metab. 2015 Oct;25(5):417-26. doi: 10.1123/ijsnem.2014-0209. Epub 2015 Mar 26. PMID: 25811544.
Ryan is a former college wrestler and lifelong fitness fanatic. He has run half marathons, done mud runs, placed in body transformation contests, coached wrestling, and now coaches girls’ soccer. Not to mention he has also tried literally hundreds of supplements over the years and has a vast and thorough supplement knowledge. He has written for Muscle & Strength, Testosterone Junkie, The Sport Review and other publications. He is also the editor-in-chief of this website and has over 25 years of experience in the fitness industry. Feel free to connect with him on his LinkedIn page below.
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