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IntestiNew

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4.8
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(7444 ratings)
Glutamine 5000 mg
N-Acetyl Glucosamine 200 mg
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Score71
A strong glutamine serving gives the powder credible digestive relevance. Modest secondary doses and an opaque herbal blend keep it from being a fully transparent formula.
How scoring works
Quantity:5 Ounce(s) • (30 servings)
Goals:
Digestive Health
Immunity

Score 71

A strong glutamine serving gives the powder credible digestive relevance. Modest secondary doses and an opaque herbal blend keep it from being a fully transparent formula.
How scoring works
$31.61($1.05 per serving)
Vitacost
$ 34.65
Pure Formulas
$ 32.24
Amazon
$ 31.61
iHerb
$ 37.71
iHerb
$ 32.89
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Analysis

The 5 g L-glutamine serving is the strongest part of the formula and gives it a clear digestive-support focus. Powder delivery also makes that gram-level amount practical without requiring many capsules.

N-acetyl D-glucosamine adds a complementary mucosal building block, but its 200 mg amount is modest for focused use. Gamma oryzanol and the small herbal blend add breadth without enough detail to judge their individual contribution.

The main ingredients are quantified, yet the herbal blend does not identify its components or their amounts. The source of N-acetyl glucosamine is also unstated, which matters to people who avoid shellfish-derived material.

Who is it for
  • Adults seeking a glutamine-led digestive formula
  • People who prefer a scoopable powder
  • Users wanting glutamine with mucosal-support ingredients
Best for
  • Focused glutamine intake
  • Digestive barrier support
  • Powder-based daily routines

Pros

  • Provides 5 g L-glutamine
  • Uses the specified N-acetyl D-glucosamine form
  • Powder suits gram-level dosing
  • Main active amounts are disclosed

Cons

  • N-acetyl glucosamine amount is modest
  • Herbal blend components are not identified
  • Glucosamine source is not disclosed
  • Supporting ingredients are difficult to value

Warnings

  • The N-acetyl glucosamine source is not stated, so people with shellfish allergy should verify its origin and the allergen statement before use.
  • The proprietary herbal blend does not identify its plants, making allergy and medication-interaction screening incomplete.
  • Because the herbal blend composition is hidden, people who are pregnant or breastfeeding cannot reliably assess whether each botanical is appropriate.

Nutrient quality

83 Highest impact

L-glutamine reaches a focused amount that fits intestinal support. Modest secondary actives and a small undisclosed herbal blend provide less dependable added value.

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Ingredient transparency

57 Moderate impact

The main actives have exact amounts and clear basic names. A proprietary herbal blend hides its contents, while glucosamine source, other ingredients, and full directions are missing.

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Customer satisfaction

73 High impact

The supplied satisfaction average is strong and has very large supporting volume. No specific experience details are provided to assess repeated complaints or alignment with the intended use.

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Value for money

75 High impact

A substantial glutamine amount provides credible digestive value at a reasonable serving cost. The modest secondary ingredients and hidden herbal blend keep the formula from offering fully transparent value.

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Goals

Digestive Health
Impact
Highest effect
A- Goal FitA- Strength of SupportB CoverageB Formula Quality
Glutamine · 5000 mgN-Acetyl Glucosamine · 200 mg

Five grams of L-glutamine provide focused support for intestinal cells and gut-barrier maintenance. N-acetyl D-glucosamine adds a complementary mucosal building block, while the other actives may support comfort.

The N-acetyl glucosamine and botanical amounts are modest, and the small herbal blend does not disclose its components. Its source is also unstated, which matters for people who avoid shellfish-derived glucosamine.

Study evidence
Glutamine Supportive 37 studies
Immunity
Impact
High effect
C- Goal FitB- Strength of SupportC- CoverageB Formula Quality

A substantial L-glutamine serving gives the formula credible depth for targeted intestinal support. N-acetyl glucosamine and gamma oryzanol add complementary but less established elements.

The product is specialized rather than a broad general-health foundation. A proprietary herbal blend hides its component amounts, and no premium glutamine purity or processing standard is provided.

Study evidence
Glutamine Supportive 36 studies

Ingredients

IngredientAmount per serving
Calories
20 Calorie(s)
L-Glutamine
5000 mg
N-Acetyl D-Glucosamine
200 mg
Gamma Oryzanol
125 mg
Proprietary Herbal Blend
75 mg
Gluten Free Adults 18–50 Dairy Free
Report overview
Glutamine · 5000 mg OverallScore80
C Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB- Value

The powder provides a clearly disclosed 5 g L-glutamine serving that aligns with focused gut-support use. One scoop keeps daily use practical, though no premium purity grade or micronized processing claim is stated. Cost efficiency is reasonable for the amount delivered, with several additional ingredients contributing to the formula.

B Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value

The formula provides the specified D-isomer, but its N-acetyl glucosamine amount is modest for a focused supplement. A powder format and clearly listed amount make dosing straightforward, while the undisclosed source leaves uncertainty for people avoiding shellfish. The strong L-glutamine dose adds digestive-support value, although the cost for the target ingredient remains relatively high.

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Sources

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

  1. 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 participantsDigestive Health forGlutamine
  2. Glutamine for chemotherapy induced diarrhea: a meta-analysis.
    Sun J; Wang H; Hu H · Asia Pacific journal of clinical nutrition · 2012
    Meta-analysis298 participants8 studies pooledDigestive Health forGlutamine
  3. Treatment of acute diarrhea with oral rehydration solutions containing glutamine.
    Ribeiro Júnior H; Ribeiro T; Mattos A; Palmeira C; Fernandez D; Sant'Ana I; Rodrigues I; Bendicho MT; Fontaine O · Journal of the American College of Nutrition · 1994
    Randomized trial120 participantsDigestive Health forGlutamine
  4. Phase III double-blind study of glutamine versus placebo for the prevention of acute diarrhea in patients receiving pelvic radiation therapy.
    Kozelsky TF; Meyers GE; Sloan JA; Shanahan TG; Dick SJ; Moore RL; Engeler GP; Frank AR; McKone TK; Urias RE; Pilepich MV; Novotny PJ; Martenson JA; North Central Cancer Treatment Group · Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2003
    Randomized trial129 participantsDigestive Health forGlutamine
  5. 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 pooledDigestive Health Immunity forGlutamine
  6. 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 pooledDigestive Health forGlutamine
  7. 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 participantsDigestive Health forGlutamine
  8. 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 participantsDigestive Health forGlutamine
  9. 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
  10. 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
  11. 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
  12. 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