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ATP Science L-Glutamine
Powered By: ATP Science

Pure L-Glutamine Powder for Muscle Recovey

  • Reduce Muscle Soreness After Exercise (DOMS)
  • Correct Gut Health & Digestive Issues 
  • Support Immune System & Response
  • Optimize Fluid Balance & Reduce Water Retention 
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ATP Science L-Glutamine is classified as one of the most abundant amino acids in the body and while technically non-essential as the body can synthesize this amino, it has been shown to be depleted easily when the body is under large amounts of stress such as strenuous exercise and as such is an essential to have if you are training extensively as it helps with DOM’s to regulation of Acid-base homeostasis in the body. Glutamine is also excellent for maintaining mucosal integrity of the gut and immune response mechanisms. Our glutamine is also GMO free and vegan.


L-Glutamine is non-essential and conditionally essential in humans, meaning the body can usually synthesize sufficient amounts of it, but in some instances of stress (such as intense exercise), the body’s demand for glutamine increases and glutamine must be obtained from the diet. In fact, glutamine is so important to the body, it is the most abundant amino acid found in the blood.


  • Reduces muscle soreness after exercise (DOMS)
  • Catabolic states, such as major trauma, sepsis, major surgery and bone marrow transplantation as well as intense chemotherapy and radiotherapy, are associated with low plasma levels of glutamine
  • Reduced availability of glutamine in these conditions may lead to an impaired immune function because of a reduced capacity of immune cells to proliferate
  • Glutamine is the respiratory fuel for the lymphocytes, hepatocytes and the mucosal cells of the gut
  • Glutamine is one of the most important substrates for ammoniagenesis, not only in the gut, but also in the kidney, because of its important role in the regulation of acid-base homeostasis

The Science of L-Glutamine - Reducing the DOMs

A study examined the effects that L-glutamine supplementation has on quadriceps muscle strength and soreness ratings following resistance exercise. It was thought that glutamine ingestion would quicken the recovery rate of peak force production and decrease muscle soreness ratings over a 72-hr recovery period. Sixteen healthy participants volunteered in a double-blind, randomized, placebo-controlled crossover study. Muscle soreness was measured before, immediately following, 24, 48, and 72 hr post-resistance exercise. L-glutamine resulted in greater relative peak power during the exercise. In all the individuals, L-glutamine resulted in lower soreness ratings at 24, 48 and 72 hour post-exercise. The bottom line is that L-glutamine supplementation resulted in faster recovery of peak power and diminished muscle soreness following exercise.

The Resume of L-Glutamine

A variety of investigations have provided evidence that glutamine has become an important and, possibly essential, amino acid during stressors such as intense exercise. This switch to becoming an essential amino acid appears when the demand of the body for glutamine increases markedly. The plasma glutamine use exceeds the glutamine synthesis of the skeletal muscle and the liver in catabolic conditions. Circulating glutamine is an important substrate for the enterocyte, hepatocyte and immune cells as an oxidative fuel as well as a substrate for nucleotide synthesis.

Muscle Medicine

Clinical trials provide important confirmation that dietary glutamine supplementation is indeed associated with amelioration of metabolic response to stress and injury. Moreover, in selected critically ill patients, glutamine seems to improve their outcome. The mechanisms of these effects remain elusive and are the subject of ongoing investigations. Supplemental glutamine improves nitrogen balance and preserves the concentration of glutamine in skeletal muscle.

Fluid Balance

In selected patients, glutamine preserves normal distribution of body water by preventing expansion of extracellular water and reducing fluid retention. This is vital for competition prep if you are a body builder or, if you simply want to look better.

Gut Health

In the critically ill patient with breakdown of the intestinal barrier, exogenous glutamine may protect the host from gut-derived endotoxemic complications. A possible mechanism for the helpful effects of glutamine on the stressed gut is the increased production of arginine, which serves as a precursor for nitric oxide, a potent vasodilator.

Exercise Induced Gut Leaking

Intestinal permeability and systemic inflammation are associated with gastrointestinal (GI) distress, in which paracellular endotoxin leakage triggers an immune response, causing disruption to intestinal epithelial cell absorption mechanisms. Exercise-induced hyperthermia in humans is associated with an increase in intestinal permeability, commonly called leaky gut, which provokes an inflammatory cascade. This pathway may be responsible for exercise-induced GI distress in which tight junction (TJ) breakdown and increased permeability is the initial phase of the pathway. The good news is that 7 days of oral glutamine supplementation protected the gut during high-intensity endurance exercise by reducing intestinal permeability. Keep in mind, this study induced gut leakage by exercising for a mere 60 minutes. That is an average workout length!

Why Should I take ATP Science L-Glutamine 

Benefits of ATP Science L-Glutamine are:

  • Allergen, pesticide, heavy metal and microbial tested for compliance
  • Approved material manufacturer that will allow audits of their factory
  • HPLC verified guaranteeing fully efficacious material and no contaminants or adulteration
  • Vegan
  • Gluten free
  • GMO free
  • Sugar free
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ATP Science L-Glutamine
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  • What is ATP Science L-Glutamine?

    ATP Science L-Glutamine is a dietary supplement that contains pure L-Glutamine, an amino acid that plays a crucial role in muscle recovery, immune system support, and gut health.

  • How does ATP Science L-Glutamine work?

    L-Glutamine is involved in various physiological processes, including protein synthesis, immune cell function, and maintaining the integrity of the gastrointestinal tract. ATP Science L-Glutamine provides additional L-Glutamine to support these functions.

  • What are the key benefits of taking ATP Science L-Glutamine?

    The key benefits of ATP Science L-Glutamine include supporting muscle recovery and growth, promoting a healthy immune system, assisting in gut health and digestion, and potentially reducing muscle soreness.

  • How should I take ATP Science L-Glutamine?

    The recommended dosage of ATP Science L-Glutamine is typically 5-10 grams per day, divided into two or more servings. It can be mixed with water, juice, or your preferred beverage. Consult the product label or follow the guidance of a healthcare professional for specific instructions.

  • Can ATP Science L-Glutamine be used by athletes and fitness enthusiasts?

    Yes, ATP Science L-Glutamine is commonly used by athletes and fitness enthusiasts to support recovery and muscle growth. It can be particularly beneficial during intense training periods or high-stress situations.

  • Is ATP Science L-Glutamine suitable for vegetarians or vegans?

    Yes, ATP Science L-Glutamine is suitable for both vegetarians and vegans, as it is derived from plant-based sources.

  • Are there any potential side effects of using ATP Science L-Glutamine?

    L-Glutamine is generally safe for most individuals when used as directed. However, some people may experience mild gastrointestinal discomfort. It is advisable to start with a lower dosage and gradually increase as tolerated.

  • Can ATP Science L-Glutamine be taken with other supplements?

    Yes, ATP Science L-Glutamine can be taken alongside other supplements. It is often combined with protein powders, BCAAs, or other amino acids to support muscle recovery and growth. Consult with a healthcare professional for personalized advice.

  • Can ATP Science L-Glutamine help with digestive issues?

    Yes, ATP Science L-Glutamine may help support digestive health by maintaining the integrity of the gastrointestinal lining. It is often used in conditions like leaky gut syndrome and irritable bowel syndrome (IBS).

  • Is ATP Science L-Glutamine suitable for individuals with allergies or sensitivities?

    ATP Science L-Glutamine is generally well-tolerated, but individuals with specific allergies or sensitivities should review the product label or consult with a healthcare professional to ensure its suitability.

  • Can ATP Science L-Glutamine be used for weight loss?

    While ATP Science L-Glutamine is not directly a weight loss supplement, it can support weight loss efforts indirectly by preserving lean muscle mass during calorie restriction and aiding in muscle recovery after workouts.

  • Can ATP Science L-Glutamine be stacked with other supplements or should it be taken on its own?

    ATP Science L-Glutamine can be taken on its own or stacked with other supplements, depending on your individual needs. It is generally well-tolerated and can be safely combined with other supplements.

  • How much ATP Science L-Glutamine should be taken per day and when is the best time to take it?

    The recommended dosage of ATP Science L-Glutamine is 5 grams per day. It is generally recommended to take L-glutamine immediately after exercise or first thing in the morning on non-training days.

  • Can ATP Science L-Glutamine be taken by vegans and vegetarians?

    Yes, ATP Science L-Glutamine is suitable for vegans and vegetarians as it is derived from a plant source.

  • How does ATP Science L-Glutamine compare to other types of glutamine supplements?

    ATP Science L-Glutamine is a pure and high-quality form of L-glutamine. It is manufactured to meet strict quality standards and is free from impurities.

  • What is ATP Science L-Glutamine and what are its benefits?

    L-glutamine is an amino acid that is naturally found in the body and plays a role in immune function and protein synthesis. It is often taken as a supplement to support muscle recovery and immune health. Potential benefits of ATP Science L-Glutamine include improved gut health, enhanced muscle recovery, and increased immune function.

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ATP Science L-Glutamine
Based on reviews collected by
Summary Of Reviews
ATP Science L-Glutamine is a quality product that is highly recommended for its effectiveness in aiding recovery after workouts, improving joint health, and helping with autoimmune conditions. Users appreciate its value for money, lack of taste, and easy mixability.
Aids workout recovery and joint health.
Recommended for autoimmune conditions.
Value for money.
No taste, mixes easily.
Summary generated automatically from the text of customer reviews.
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Sue C
ATP Science L-Glutamine
1kg / 200 Serves Natural
I think you have to take it for a while before you know if it is making a difference. My son recommended it he felt it made his knees feel better.
Collected via Trustpilot
Gagan S
ATP Science L-Glutamine
1kg / 200 Serves Natural
Not a big fan of ATP
I have tried several ATP products and not promising to me
Collected via Trustpilot
Ross W
ATP Science L-Glutamine
1kg / 200 Serves Natural
ATP products are all good quality
Collected via Trustpilot
Tommy D
ATP Science L-Glutamine
500g / 100 Serves Natural
Fast delivery, premium product
Collected via Trustpilot
Rohan S
ATP Science L-Glutamine
1kg / 200 Serves Natural
Collected via Trustpilot
Ben T
ATP Science L-Glutamine
1kg / 200 Serves Natural
I found this the best priced for quality. I take after my work out and been feeling great. Helps with the recovery.
Collected via Trustpilot
ATP Science L-Glutamine
1kg / 200 Serves Natural
No taste and mixes really easily so it's great. Seems to be helping with my autoimmune condition, I'm trying to heal my gut and L-glutamine was recommended.
Collected via Trustpilot
Cody B
ATP Science L-Glutamine
500g / 100 Serves Natural
Quality product, will use again
Collected via Trustpilot
Ji C
ATP Science L-Glutamine
1kg / 200 Serves Natural
Awesome quality, very fine powder, dissolves well. Far better value than most other brands!
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