L-Glutamine Powder

L-Glutamine Powder

Format:Liquid Quantity: 150 Gram(s) · 30 servings
Goals
$45.64 $1.52 per serving

Product analysis

50 out of 100

L-Glutamine Powder offers a simple way to take glutamine, with possible gut benefits suggested in a specific group with digestive symptoms. Those findings do not establish routine gut repair or immune protection for everyone.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality20

The exact glutamine form is unspecified, so its form quality cannot be judged closely. That uncertainty does not establish poor quality or poor absorption.

Ingredient Transparency63

The glutamine amount is listed, allowing you to check how much a serving provides. Its exact form is unspecified, limiting a closer comparison.

Value For Money40

The cost for the amount of glutamine provided is relatively high. The simple formula makes the amount easier to compare with other glutamine powders.

Customer Satisfaction74

Customer ratings are very positive, but the feedback comes from a relatively small group. The satisfaction pattern is encouraging but less dependable than feedback from a much larger group.

Product Focus81

The single-ingredient formula has a clear focus on glutamine. Possible gut and immune uses come from particular settings, so the benefits may not extend to routine use in healthy adults.

Format
Liquid
Container
150 Gram(s)
Per serving
$1.52
Customer rating
4.9 · 59 ratings
Report analysis

Goals

Gut Health
Impact
High effect
A+ Ingredient FitC- PathwaysB EvidenceA+ Formulation Logic
Glutamine · 5000 mg

Glutamine has a digestive-symptom connection from a trial in people with post-infectious diarrhoea-predominant IBS and increased intestinal permeability. This serving supplies 5 g, equal to one of the trial’s three daily doses; it does not establish the full studied regimen. Those selected patient findings do not establish routine gut repair in all adults.

How this product is rated for Gut Health

Ingredient fit97

Glutamine supplies the main digestive connection, with a known serving amount. Its trial relevance is limited to a selected IBS subgroup.
Goal fit
Glutamine supplies the focused intestinal-barrier connection.
Dose adequacy
The 5 g serving matches one trial dose, not the full three-dose daily regimen.

Pathways59

The saved findings emphasize intestinal barrier integrity. Coverage describes a functional connection rather than a prediction of symptom relief.
Depth
The strongest saved finding concerns intestinal barrier integrity; this functional link does not establish broad digestive relief.
Breadth
The represented functions are intestinal barrier integrity; other digestive functions remain less supported.

Evidence79

Glutamine anchors the saved evidence finding, with the scientific limitations described for that ingredient.
Evidence strength
Glutamine leads the saved evidence finding, subject to its specific population and preparation limitations.
Studied preparation
The saved findings accept the credited preparations as studied; this does not extend trial benefits beyond their populations.

Formulation logic100

The credited ingredients retain their individual contributions, and no evaluated conflict was triggered. This does not demonstrate a combined benefit.
Partner coverage
The credited ingredients retain their individual contributions without a missing required partner.
Conflicts
No evaluated ingredient conflict was triggered by the supplied facts.
Effective doses
All credited ingredients meet the saved amount threshold; this is not proof of symptom benefit from one serving.
Study evidence
Glutamine Supportive 37 studies
Immunity
Impact
Highest effect
A+ Ingredient FitD+ PathwaysB+ EvidenceA+ Formulation Logic

Glutamine has limited evidence involving timed drinks after endurance exercise, where fewer self-reported infections were reported. That population and regimen do not establish routine immune benefit from the supplied 5 g selected powder serving in unselected adults. The saved findings recognize its amount and a barrier-related contribution, but this does not prove infection prevention or transfer evidence from severe-illness nutrition.

How this product is rated for Immunity

Ingredient fit97

The relevant ingredient selection fits the immune goal, although the product is also associated with other uses.
Goal fit
The relevant ingredient selection fits the immune goal, although the product is also associated with other uses.
Dose adequacy
The counted amounts reach the saved comparison endpoints, without establishing added benefit from higher exposure.

Pathways52

The strongest represented area is barrier and antimicrobial defenses. The saved findings are concentrated in one immune function, giving limited breadth.
Depth
The strongest represented area is barrier and antimicrobial defenses.
Breadth
The saved findings are concentrated in one immune function, giving limited breadth.

Evidence83

Glutamine leads the saved finding, but exercise-specific evidence does not establish routine benefit in unselected adults.
Evidence strength
Glutamine leads the saved finding, but exercise-specific evidence does not establish routine benefit in unselected adults.
Studied preparation
The counted preparations match the saved preparation finding; this does not establish superior benefit from particular forms or delivery.

Formulation logic100

The counted ingredients have their relevant partners or contribute independently, and no listed formulation conflict was triggered.
Partner coverage
The counted ingredients can contribute independently or have their relevant partners; an extra combined benefit is not established.
Conflicts
No listed formulation conflict was triggered; this does not establish safety of the whole product.
Effective doses
The counted ingredients reach the saved minimum amount comparison, which is not a proven clinical benefit threshold.
Study evidence
Glutamine Supportive 36 studies

Ingredients

IngredientAmount per servingScore
L-Glutamine
5000 mg 76
Gluten Free Adults 18–50 Vegetarian
Report overview
Glutamine · 5000 mg OverallScore76
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value
Each serving provides 5 g of L-glutamine. The whole-product price works out to about $0.30 per gram of glutamine.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

The saved facts identify L-glutamine without specifying a special grade.
Glutamine Grade & Purity
The saved facts identify L-glutamine without specifying a special grade.

Dose, Safety & Label Transparency100

The individually listed amount is 5 g of L-glutamine per serving.
Therapeutic Dosage Strength
Each serving provides 5 g of L-glutamine.
Label Transparency & Blends
The L-glutamine amount is individually disclosed as 5 g per serving.

Value40

The whole-product price works out to about $0.30 per gram of glutamine, in a higher range in the evaluation.
Price per Gram of L-Glutamine
The whole-product price works out to about $0.30 per gram of glutamine, in a higher range in the evaluation.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effect of perioperative glutamine-enriched nutritional support on patients with colorectal cancer: A systematic review and meta-analysis.
    Huang Y; Yang XZ; Qin SH; Zhang T; Xie M; Wang JW · World journal of gastrointestinal surgery · 2026
    Meta-analysis1,643 participants27 studies pooledGut Health Immunity forGlutamine
  2. Glutamine prevents diarrhea in colorectal cancer patients undergoing chemotherapy or chemoradiotherapy: a meta-analysis.
    Chen L; Wang D; Meng C; Sun H; Li R; Miao G; Liu P · BMC gastroenterology · 2025
    Meta-analysis311 participants5 studies pooledGut Health forGlutamine
  3. Glutamine supplementation reduces markers of intestinal permeability during running in the heat in a dose-dependent manner.
    Pugh JN; Sage S; Hutson M; Doran DA; Fleming SC; Highton J; Morton JP; Close GL · European journal of applied physiology · 2018
    Randomized trial10 participantsGut Health forGlutamine
  4. Effect of glutamine supplementation on diarrhea, interleukin-8 and secretory immunoglobulin A in children with acute diarrhea.
    Yalçin SS; Yurdakök K; Tezcan I; Oner L · Journal of pediatric gastroenterology and nutrition · 2004
    Randomized trial128 participantsGut Health forGlutamine
  5. Improvement of intestinal permeability with alanyl-glutamine in HIV patients: a randomized, double blinded, placebo-controlled clinical trial.
    Leite RD; Lima NL; Leite CA; Farhat CK; Guerrant RL; Lima AA · Arquivos de gastroenterologia · 2013
    Randomized trial46 participantsGut Health forGlutamine
  6. Meta-analysis of Glutamine on Immune Function and Post-Operative Complications of Patients With Colorectal Cancer.
    Yang T; Yan X; Cao Y; Bao T; Li G; Gu S; Xiong K; Xiao T · Frontiers in nutrition · 2021
    Meta-analysis2,201 participants31 studies pooledImmunity forGlutamine
  7. Efficacy of Glutamine in Treating Severe Acute Pancreatitis: A Systematic Review and Meta-Analysis.
    Dong S; Zhao Z; Li X; Chen Z; Jiang W; Zhou W · Frontiers in nutrition · 2023
    Meta-analysis1,201 participants30 studies pooledImmunity forGlutamine
  8. Decreased mortality and infectious morbidity in adult burn patients given enteral glutamine supplements: a prospective, controlled, randomized clinical trial.
    Garrel D; Patenaude J; Nedelec B; Samson L; Dorais J; Champoux J; D'Elia M; Bernier J · Critical care medicine · 2003
    Randomized trial45 participantsImmunity forGlutamine
  9. Glutamine administration reduces Gram-negative bacteremia in severely burned patients: a prospective, randomized, double-blind trial versus isonitrogenous control.
    Wischmeyer PE; Lynch J; Liedel J; Wolfson R; Riehm J; Gottlieb L; Kahana M · Critical care medicine · 2001
    Randomized trial26 participantsImmunity forGlutamine