Top 5 - the best supplements with L-glutamine
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Top 5 - 01/02/2026

Top 5 - the best supplements with L-glutamine

L-glutamine is one of the most important amino acids involved in many metabolic processes in our body. The highest concentration of L-glutamine is found in muscles and blood plasma. It is an endogenous amino acid, which means that the body can synthesize it on its own. However, in certain situations, such as intense physical exertion, stress or illness, its demand can increase significantly. In such cases, it is worthwhile to support with supplementation. L-glutamine is especially valued by athletes and physically active people, as it aids muscle regeneration, increases performance, prevents loss of muscle mass and reduces the feeling of fatigue. There are many supplements on the market containing L-glutamine. To make it easier for you to choose an effective product, we have prepared a ranking of the best preparations with L-glutamine. Check out our list and support the health of your muscles and the whole body.

Reviews and opinions of popular supplements with L-glutamine

Benefits

  • Simple and clean composition.
  • High daily dose of L-glutamine.
  • Supports muscle building and recovery.
  • Prevents loss of muscle mass.
  • Supports the proper functioning of the immune and digestive systems.
  • Easy to take capsules.
  • Efficient packaging.
  • The price is adequate for the quality and effectiveness.

Disadvantages

  • Available only in selected stores.

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Nutridome brand L-glutamine is distinguished by its simple and pure composition (it contains only L-glutamine) and a high daily dose of this amino acid of 1000 mg. Therefore, regular intake of Nutridome supplement effectively replenishes the amount of L-glutamine during periods of intense physical exertion, illness or stress, when its production may not be sufficient. Above all, L-glutamine supports muscle building, prevents loss of muscle mass (muscle catabolism), aids recovery after training, and improves the functioning of the immune and digestive systems. The package of the supplement lasts for 30 days, the capsules are easy to take, and the price of the product is adequate to the quality. Nutridome L-glutamine is an extremely effective means of increasing performance, boosting immunity and ensuring muscle health.

4.98
Effectiveness 5
L-glutamine dosage 5
Ease of use 5
Price 4.9

Benefits

  • Simple composition.
  • High daily dose of L-glutamine.
  • Supports muscle health and recovery.
  • Prevents the reduction of muscle mass.
  • Supports intestinal health and boosts immunity.
  • Efficient packaging.
  • Favorable price.

Disadvantages

  • The daily serving is 1 capsule taken 3 times a day.
  • Inconvenient application.
  • Impractical system of opening the package.

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The vegan dietary supplement from Now Foods is a very good formula with a simple composition. It effectively supports the health and regeneration of muscles, has a positive effect on metabolism, and prevents the reduction of muscle mass. The Now Foods supplement contains 500 mg of L-glutamine in 1 capsule. Regular intake of this amino acid also improves the work of the digestive system, alleviating intestinal discomfort, and strengthens the body's immune system, preventing common illnesses and infections. The package of the supplement is efficient and lasts for about 40 days of use. And the favorable price makes the Now Foods preparation a very economical proposition. The recommended daily intake is 1 capsule taken up to 3 times a day.

4.45
Effectiveness 4.8
L-glutamine dosage 4.9
Ease of use 3.4
Price 4.7

Benefits

  • A good dose of L-glutamine.
  • Accelerates muscle recovery.
  • Improves the functioning of the immune and digestive systems.
  • Increases physical fitness.
  • Easy to take capsules.
  • Efficient packaging.
  • Favorable price.

Disadvantages

  • In the composition unnecessary additional substances.
  • Impeded application.
  • The supplement is not vegan.

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L-glutamine by Swanson is a dietary supplement in the form of easy-to-take capsules. There are 500 mg of L-glutamine in 1 capsule, which, with the recommended daily serving of 2 capsules, effectively improves the health of the body. Regular use of this amino acid, among other benefits, improves the functioning of the immune and digestive systems. In addition, it boosts metabolism, increases physical performance and accelerates muscle recovery after strength training. The supplement's packaging is efficient and its price is favorable. Unfortunately, it is not suitable for vegans and vegetarians.

4.4
Effectiveness 4.8
L-glutamine dosage 4.9
Ease of use 3.4
Price 4.5

Benefits

  • Simple composition.
  • Supports muscle recovery.
  • Strengthens immunity and supports intestinal health.
  • Efficient packaging.
  • Affordable price.

Disadvantages

  • Small daily dose of L-glutamine.
  • Large capsules.
  • Limited availability.

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Solaray brand dietary supplement in the form of vegan capsules is a product characterized by its simple composition and effective action. 1 capsule provides the body with 500 mg of L-glutamine, which makes taking the product improve tissue health and support muscle regeneration after intense exercise, as well as strengthen the body's immunity and support the proper functioning of the digestive system. The package of Solaray supplement is efficient and lasts for 50 days of use. The price is affordable, but unfortunately the product is not readily available on the Polish market.

4.1
Effectiveness 4.8
L-glutamine dosage 3.9
Ease of use 3.5
Price 4.2

Benefits

  • Supports muscle health and recovery.
  • Improves the functioning of the immune and digestive systems.
  • Easy to take capsules.
  • Efficient packaging.
  • Dark glass jar.

Disadvantages

  • In the composition of the fillers.
  • Low dose L-glutamine.
  • High price.

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The Solgar brand has created a dietary supplement with L-glutamine in the form of vegan capsules. A daily serving contains 500 mg of this valuable amino acid, which, unfortunately, is not a large dose. However, regular use of the product supports the health and recovery of muscles after training, influences the restoration of tissues, strengthens immunity and improves the functioning of the digestive system. The supplement's packaging is efficient (enough for 50 days), and the capsules are easy to take. In contrast, the price of the product is high. A great advantage of Solgar L-glutamine is the dark glass jar, which protects the contents from harmful light.

4
Effectiveness 4.4
L-glutamine dosage 3.8
Ease of use 4.6
Price 3.2

L-glutamine - a natural way to regenerate and build muscle and support immunity

L-glutamine is one of the most important amino acids, significantly affecting the functioning of the entire body, especially during periods of intense exercise, stress or after illness. It plays a key role in the recovery of muscles, protecting them from excessive breakdown and promoting their growth. It is also a valuable support for the immune system, which is especially important for people who are often ill. Its importance for intestinal health should not be overlooked - it helps maintain its normal structure and supports its microflora, which translates into better absorption of nutrients. Regular supplementation with L-glutamine is a simple and effective way to improve the performance of the body, faster recovery and strengthen natural defense mechanisms. 

How to choose the best supplement with L-glutamine? 

When creating our ranking of the best supplements with L-glutamine, we took into account the following criteria: 

How to choose the best supplement with L-glutamine? Is the supplement effective in action: 

What is the daily dose of L-glutamine:

Is the composition of the supplement simple and pure? 

Whether there are no unnecessary additives and substances that may be harmful to health?

Whether the supplement is easy to use? Is the supplement easy to use? 

Is the packaging efficient? 

Is the price of the supplement adequate to the quality and effectiveness?

L-glutamine - properties 

The most important properties of L-glutamine include: 

Promoting muscle recovery - helps rebuild muscle fibers after exercise.

Prevent muscle catabolism - protects muscles from breakdown, especially during periods of intense training. 

Strengthen the immune system - provides energy to lymphocytes and macrophages, supporting the fight against infections. 

Improve intestinal function - supports mucosal regeneration and helps maintain healthy bacterial flora. 

Accelerate recovery from injury and surgery - promotes wound healing and tissue recovery. 

Enhance protein synthesis - participates in the construction of new proteins, which is crucial for muscle and other tissues. 

Alleviation of stress and fatigue - supports the body in situations of increased physical and mental exertion. 

What exactly is L-glutamine?

L-glutamine is an important amino acid naturally occurring in our body, which is essential for the proper functioning of many biological processes. It belongs to the group of endogenous amino acids, which means that the body can synthesize it on its own. However, in situations such as intense physical exertion, stress, injury, illness or weakening of the immune system, its demand increases significantly, and it is worth supporting with supplementation to prevent, among other things, weakened immunity, deterioration of recovery after training and loss of muscle mass.

L-glutamine plays a key role in protein metabolism and nitrogen transport in the body. It is the primary "fuel" for intestinal cells, helping to maintain the normal structure and function of the intestinal mucosa. It is also an essential ingredient in muscle regeneration processes, and for this reason it is often used by athletes, as it helps rebuild tissues after intense training and prevents their breakdown. L-glutamine also has a significant effect on the functioning of the immune system. It is essential for lymphocytes and macrophages - cells responsible for fighting infections. Thus, it can support the body during periods of weakness and increased exposure to infections. 

What is the best supplement with L-glutamine? 

The best supplement with L-glutamine should have a simple and pure composition, without unnecessary additives, preservatives and artificial substances. It should effectively support the health of the muscles, immune and digestive systems. It's also important that it contains L-glutamine in a form that is convenient to take and in the right dosage for individual needs. It should also be efficient and reasonably priced. 

How to use L-glutamine supplements?

Supplements with L-glutamine are most often used in the form of capsules, tablets and powder in doses of 5 to 10 grams per day, depending on individual needs. Athletes and physically active individuals can take it before or after training to support muscle recovery and reduce the risk of muscle catabolism. For supporting the immune system or improving intestinal health, it is recommended to take glutamine on an empty stomach, or between meals. It is best to dissolve it in water or other liquid to facilitate absorption. L-glutamine supplements should be taken regularly to fully benefit from its beneficial effects. 

What are the benefits of using L-glutamine supplements? 

The most important benefits of using L-glutamine supplements include: 

Regular use of L-glutamine can provide many benefits, especially for those who are physically active, have digestive problems, or have weakened immunity.