Brand: Source Naturals

PowderAmino acid/ProteinOff Market
Click to view full label

Net Contents

16 Ounce(s)

Serving Size

0.25–0.5 Teaspoon(s)

Servings Per Container

226

Supplement Form

Powder

Bar Code (UPC/SKU)

0 21078 01548 2

Product Version

SN1548 REV K101

Label Analysis

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

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

2Dietary Attributes

Label states: Vegetarian, Gluten-Free.

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

Allergen Guide

Contains

  • Milk
  • Egg
  • 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: 0.25–0.5 Teaspoon(s) · 1 per day

IngredientAmount Per Serving
Calories10 Calorie(s)
L-Glutamine2 Gram(s)

Not Present

Target Groups

VegetarianAdult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: 1/4 to 1/2 teaspoon daily between meals.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Formulation

Formulation re: Other

Free-form powder

Formula re: Contains

L-Glutamine, a free-form amino acid, can be converted to glutamic acid. Glutamic acid is a usable energy source for the brain and a precursor to the important inhibitory neurotransmitter GABA (gamma-aminobutyric acid). L-Glutamine also plays an important role in ammonia disposal.

Formulation re: Vegetarian/Vegan

Suitable for vegetarians.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

FDA Statements

FDA Statement of Identity

Amino Acid Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Other Label Statements

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

Copyright Source Naturals, Inc.

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$4.30 – $73.99· 40 listings
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    iHerb4.7(383)
    $10.72
  • Source Naturals, Inc. Glutamine Comfort Powder

    PureFormulas.com5.0(1)
    $18.19
  • L Arginine Source Naturals

    iHerb4.7(222)
    $9.74
  • Best Naturals L-Glutamine mg

    Target4.5(25)
    $14.99
  • Source Naturals, L-Glutamine, 500 Mg, 50 Tablets

    Maple Herbs4.7(383)
    $35.25
  • L-Glutamine Powder

    SeeBeyond
    $55.00
  • Source Naturals L Leucine

    iHerb4.8(136)
    $27.49
  • Source Naturals Amino Athlete 1000 mg 100 Tablet

    PureFormulas.com4.8(120)
    $10.15

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

  • Country Store Health Foods

    4.6 (49)

    Health food store

    3618 N Vermilion St, Danville, IL 61832

  • Danville Health Club Inc

    5.0 (1)

    Vitamin & supplements store

    125 N Vermilion St, Danville, IL 61832

  • The Vitamin Shoppe

    4.4 (89)

    Vitamin & supplements store

    901A Anthony Dr, Champaign, IL 61820

  • Stacked Nutrition and Supplements

    5.0 (54)

    Vitamin & supplements store

    588 William R Latham Senior Dr Unit10, Bourbonnais, IL 60914

  • Supplement Superstore

    4.9 (324)

    Vitamin & supplements store

    115 Veterans Pkwy Ste C, Normal, IL 61761

  • Active Nutrition, Terre Haute (ANS)

    5.0 (81)

    Vitamin & supplements store

    3410 S US Hwy 41, Terre Haute, IN 47802

  • ISG Supplements

    4.8 (5)

    Vitamin & supplements store

    1714 E Main St, Crawfordsville, IN 47933

  • Supplement Superstore

    4.9 (603)

    Vitamin & supplements store

    2302 Wabash Ave, Springfield, IL 62704

Research & Studies

  • Glutamine as an immunonutrient

    H Kim - Yonsei medical journal, 2011 - synapse.koreamed.org

    … Both L-Glutamine and L-alanyl-L-glutamine prevented oxidant- or … containing L-alanyl-L-glutamine had lower mortality rates … L-glutamine use in the treatment and prevention of mucositis …

    2011184 citations
  • THE BENEFITS OF L-GLUTAMINE SUPPLEMENTATION IN ATHLETES.

    A Todero - Journal of Australian Strength & Conditioning, 2014 - search.ebscohost.com

    … The Safety Of L-Glutamine Amidst the extensive investigation into short and long term administration of L-glutamine supplements on human test subjects, it has been established that …

    20142 citations
  • Glutamine, as a precursor of glutathione, and oxidative stress

    MI Amores-Sánchez, MÁ Medina - Molecular genetics and metabolism, 1999 - Elsevier

    … Reduced natural killer activity has been associated with high levels of prostaglandin E2. The enhanced natural killer activity seen with glutamine supplementation in the diet can be ex…

    1999349 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

    … the effects of L-glutamine on salivary immune markers and hormonal status; as a result, this study aimed to assess whether three-week L-glutamine supplementation after intensive …

    202419 citations
  • L-glutamine use in the treatment and prevention of mucositis and cachexia: a naturopathic perspective

    JE Noé - Integrative cancer therapies, 2009 - journals.sagepub.com

    L-Glutamine (L-GLN) is considered a nonessential amino acid that has a variety of applications in naturopathic medicine. It has been postulated that in the critically ill patient, GLN …

    200980 citations
  • L-Glutamine supplementation: effects on endurance, power and recovery.

    T Piattoly, TR Parish… - Current topics in …, 2013 - search.ebscohost.com

    … ABSTRACT: The purpose was to examine the influence of L-Glutamine on endurance and … Subjects were then randomized to either L-glutamine (GLU) or placebo (CON) for 6 days. …

    201311 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-08-23. DSLD Label ID: 295938. 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.