L-glutamine

Across the corpus

How this ingredient is actually sold

Printed dose per serving

0.025 g – 4 g; median 0.5 g. Measured on the 41 of 56 published products carrying it whose latest published label prints a mass for it. The lower end includes labels carrying it as a minor ingredient of a blend rather than as the serving itself.

Forms

Capsule: 25 · Liquid: 1 · Other (e.g. tea bag): 2 · Powder: 26 · Tablet or Pill: 2 · counted across the 56 of 56 published products whose label states a form

Brands carrying it

biocare (2) · douglas-laboratories (2) · gnc-probiotic-solutions (2) · mass-probiotics (7) · pharmax (4) · the five largest of 43 brands with a published product

Published product pages

56

Products

Published products carrying this ingredient

The 12 highest-scoring of 56 published products carrying it.

Axis 1 · inverted

Containing label versions

Showing 100 of 574 rows, ordered by Gut Index Score descending, then DSLD label ID. Download full CSV · Download full JSON.

Axis 4

Reddit mention panel

0 observed mentions; no aggregate panel matched this entity.

Products

Also carried by

44 further published products carry it beyond the table above.

DaVinci Benefits Line Detox Benefits · Number One Nutrition Elderberry+ · Vital Nutrients GI Repair Nutrients · Cognizance Immunity · Pure Essence Real-Zymes Keto · XYMOGEN Max GI · DaVinci Laboratories Multiphase Detox · Dr. Seth's Vitamin Vibrations Power Liver Cleanse · Amare MentaBiotics · Pharmax Probiotics with Nutrients · Natural Vitality CALM Specifics Calmful Gut Wildberry Flavor · Douglas Laboratories Intestinal/GI Support Pack · Genestra Brands HMF Neuro Capsules · Mass Probiotics GoLive Plus Probiotic + Prebiotic Beauty Tonic Hibiscus Peach · Douglas Laboratories Week Four: Renew · Body Ecology Immune Power Shake · GT Genesis Today Fiber · HealFast Post-Op & Injury Recovery Support Formula · Ancient Nutrition SBO Probiotics Gut Restore 25 Billion CFU · NaturesPlus GI Natural Total Digestive Wellness · MRM Intestinal Bowel Support · Bioclinic Naturals RestorX · NaturesPlus AgeLoss Digestion Support · BioCare Children's Mindlinx Complex · Mass Probiotics GoLive Plus Probiotic + Prebiotic Defense Pineapple Passion Fruit · Mass Probiotics GoLive Plus Probiotic + Prebiotic Glow Hibiscus Peach · Natural Rhythm Digestive Calm Probiotic · Pharmax HLC Colon-Izer · Codeage Gut Health Formula · Pharmax HLC MindLinx Powder · NutriClean Advanced Fiber Powder · Market America Advanced Fiber Powder · GNC Daily Immune Support Powder Mix Mixed Berry · Mass Probiotics GoLive Probiotic + Prebiotic Flavorless · Mass Probiotics GoLive Plus Hers Probiotic + Prebiotic Dragon Fruit · Mass Probiotics GoLive Berry Pomegranate · Mass Probiotics GoLive Plus Probiotic + Prebiotic Matcha Tea with Ginger & Yuzu · Drucker Labs intraKID All-In-One All Natural Raspberry Flavor · Pharmax HLC MindLinx Capsules · Professional Botanicals Leaky Gut · Vibrant Health Digestive Vibrance Mandarin Orange · Signature Supplements Ulcer X · CytoSport Monster Milk Chocolate · CytoSport Monster Series Monster Milk Banana

Elsewhere in this release

Related pages

Compared side by side: L-glutamine vs guar

Findings computed over the whole corpus: Strain naming census · Label designation changes · Strain dose match · Stability literature gaps

Tools: DSLD product check · Unit value calculator

Citation

Cite this page

Ivitskiy, I. (2026). L-glutamine. Gut Registry, release 2026-09-20. Elanvale Ltd. https://gutregistry.com/s/l-glutamine/

The underlying tables are published under CC BY 4.0: this page as CSV · as JSON · full release and data dictionary. Cell-level provenance names the source record and its observation date.

Citable atoms

Release claims

1. L-glutamine appears on 574 of 13,330 labels in the NIH DSLD snapshot (Sep 2026), from 190 brands; rank 1 of 11 substances by distinct label count.

   574 / 13330 observed label versions · NIH DSLD snapshot Sep 2026 · entity.prevalence · checked 2026-09-20T00:00:00Z · snapshot b7633f732437

2. 11 of 574 containing labels in the NIH DSLD snapshot (Sep 2026) print grams per serving for L-glutamine (1.9%); 475 light records have quantities unavailable.

   11 / 574 containing labels · NIH DSLD snapshot Sep 2026 · entity.grams · checked 2026-09-20T00:00:00Z · snapshot b7633f732437

3. 47 PubMed records indexed as human randomized controlled trials match the published query (as of 2026-09-15). 47 records (retracted records excluded; 1 retracted records match the query separately).

   Published PubMed query

   47 / 47 loaded PMID records · NIH DSLD snapshot Sep 2026 · entity.evidence · checked 2026-09-20T00:00:00Z · snapshot b7633f732437

4. 277 interventional studies on ClinicalTrials.gov match the published query.

   Published ClinicalTrials.gov query

   277 / Not available in this release. interventional registry studies · NIH DSLD snapshot Sep 2026 · entity.registered_trials · checked 2026-09-20T00:00:00Z · snapshot b7633f732437

5. 0 of 557 SKUs containing L-glutamine have a numeric price observation (0.0%) in the release accompanying the NIH DSLD snapshot Sep 2026.

   0 / 557 containing SKUs · NIH DSLD snapshot Sep 2026 · entity.price · checked 2026-09-20T00:00:00Z · snapshot b7633f732437