L-Glutamine Powder®

Amino Acids & Protein

Brand: GNC Pro Performance

PowderAmino acid/ProteinOff Market
Click to view full label

Net Contents

1 lb

Serving Size

5 Gram(s)

Servings Per Container

90

Supplement Form

Powder

Bar Code (UPC/SKU)

0 48107 04284 4

Product Version

CODE 350528 AHG

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

  • Milk
  • Wheat
  • Soy
  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 5 Gram(s) · 2 per day

IngredientAmount Per Serving
L-Glutamine5 g

Not Present

Other Ingredients

None

Target Groups

Adult (18 - 50 Years)

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

DIRECTIONS: As a dietary supplement, take one heaping teaspoon (5g) post exercise in 8 fl. oz of water or fruit juice and another 5 g serving two hours later.

Warnings & Precautions

Precautions re: Children

KEEP OUT OF REACH OF CHILDREN.

Storage

Storage

Store in a cool, dry place.

Formulation

Formula re: Contains

5 GRAMS OF L-GLUTAMINE PER SERVING

Formulation re: Does NOT Contain

No Sugar, No Starch, No Artificial Colors, No Artificial Flavors, No Preservatives, Sodium Free, No Wheat, No Gluten, No Corn, No Soy, No Dairy, Yeast Free.

Formula re: Contains

Each serving supplies 5 grams of L-Glutamine and blends easily with any beverage or sports drink.

FDA Statements

FDA Disclaimer Statement

*This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

DIETARY SUPPLEMENT

FDA Statement of Identity

FREE-FORM AMINO ACID

Other Label Statements

General Statements: All Other Content

CODE 350528 AHG

General Statements: All Other Content

Glutamine, one of the most abundant amino acids found in skeletal muscles, serves as fuel for the immune system, provides an anti-catabolic effect and is involved in protein synthesis.* Prolonged high-intensity exercise has shown to decrease glutamine levels, which may result in glutamine deficiency.

General Statements: All Other Content

Made in the USA

General Statements: All Other Content

NOTICE: Significant product settling may occur.

General Statements: All Other Content

SUPPORTS MUSCLE FUNCTION DURING & AFTER EXERCISE*

General Statements: All Other Content

UNFLAVORED

Brand IP Statement(s) re: (c), (TM), (SM)

Supplementing with Pro Performance L-Glutamine Powder may help in maintaining glutamine stores.

Manufacturer & Distributor

Other

1-888-462-2548

Distributor

General Nutrition Corporation

Pittsburgh, PA, 15222

Other

Market Reference

$21.95 – $219.60· 28 listings
  • GNC Pro Performance L-Glutamine

    GNC4.1(259)
    $24.99
  • Beyond Raw Chemistry Labs L-Glutamine

    GNC4.8(29)
    $24.99
  • GNC Pro Performance L-Glutamine 5000 Mg - 50 Servings - 0.55Lbs, 250 Gm (Unflavor) Creatine Monohydrate, (Unflavoured, 100 Grams Powder) COMBO

    Silkrute
    $53.52
  • GNC Pro Performance Essential Amino Complete

    GNC3.4(159)
    $34.99
  • GNC Pro Performance L-Glutamine 5000 mg - 50 Servings - 0.55lbs, 250 gm (Unflavored) (Pack of 2)

    Silkrute4.1(258)
    $70.24
  • GNC Pro Performance Weight Gainer

    GNC3.5(3500)
    $34.99
  • GNC Pro Performance L-Glutamine 5000 mg - 50 Servings - 0.55lbs, 250 gm (Unflavored) (Pack of 3)

    Silkrute4.1(258)
    $104.07
  • GNC Pro Performance Bulk 1340 Cookies and Cream

    GNC4.2(375)
    $54.99

Where to Buy Locally

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Research & Studies

  • The influence of oral L-glutamine supplementation on muscle strength recovery and soreness following unilateral knee extension eccentric exercise

    Z Legault, N Bagnall… - … journal of sport …, 2015 - journals.humankinetics.com

    … in this study, which was approved by the Health Sciences Research Ethics Board at Dalhousie … -1·day-1 of L-Glutamine (Micronized L-Glutamine: GNC Pro Performance®, Mississauga, …

    2015110 citations
  • GLUTAMINE SUPPLEMENTATION AND RENAL HEALTH

    T Juiced, D Ahmad, M Bansal, E Dillon, S Dorsey… - api.drum.lib.umd.edu

    … surrounding protein supplementation and renal health that this research team could fill. … match the actual content in the supplement bottles determined using high-performance …

  • The Influence of Oral L-Glutamine Supplementation on Muscle Strength Recovery and Soreness Following...

    D Kimmerly - summaremeis.com

    … in this study, which was approved by the Health Sciences Research Ethics Board at Dalhousie … -1·day-1 of L-Glutamine (Micronized L-Glutamine: GNC Pro Performance®, Mississauga, …

  • TREATMENT OF CHEMOTHERAPY-INDUCED ORAL MUCOSITIS USING LOW INTENSITY LASER AND L-GLUTAMINE: AN EXPERIMENTAL STUDY

    H HH, ELW HM, HM Hagag, EKH Mohammad - researchgate.net

    … Delays in drug administration and increased medical costs are also considered, additionally, it may … L-glutamine application GLN powder (GNC Pro Performance® USA) was mixed with …

  • L-glutamine supplementation enhances strength and power of knee muscles and improves glycemia control and plasma redox balance in exercising elderly …

    GR Amirato, JO Borges, DL Marques, JMB Santos… - Nutrients, 2021 - mdpi.com

    … , coordinator of this Primary Health Care Program at … and medical authorization to perform the regular program of physical exercises; and with complete registration in the Primary Health …

    202141 citations
  • Supplementation of L-glutamine enhanced mucosal immunity and improved hormonal status of combat-sport athletes

    TL Lu, AC Zheng, K Suzuki, CC Lu… - Journal of the …, 2024 - Taylor & Francis

    … , which is detrimental to sport performance and health. The aim of this study was to evaluate whether three-week supplementation of L-glutamine could benefit the mucosal immunity …

    202419 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2011-11-25. DSLD Label ID: 2700. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.