AOR L-Glutamine Powder - Gut, Immune & Muscle Recovery | 450 g
Visit the AOR Store Read all reviews on Amazon →| Brand | AOR |
| Serving | 5 g powder (1 scoop) |
| Licensed Natural Health Product | NPN 80005719 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada  |
About this item
- PURE L-GLUTAMINE, 5 g PER SCOOP: A single-ingredient amino-acid powder - 5000 mg of L-glutamine per one-scoop serving, with no fillers, flavours or non-medicinal ingredients.
- IMMUNE & DIGESTIVE SUPPORT: L-glutamine helps support immune and digestive system health, especially after periods of physical stress - it is the body's most abundant amino acid.
- RECOVERY AFTER EXERCISE: Stored in muscle and released under physical stress, L-glutamine assists in muscle-cell repair after exercise - steady support for an active routine.
- TASTELESS & EASY TO MIX: Dissolves cleanly in water or juice with no added flavour - stir one scoop into your morning routine on an empty stomach.
- HYPOALLERGENIC, CLEAN FORMULA: Vegan, non-GMO and gluten-free with no fillers or undeclared ingredients - a hypoallergenic option for sensitive routines.
- UP TO A 3-MONTH SUPPLY: 90 servings per 450 g jar - one scoop daily lasts up to three months for consistent, long-term value.
- PREMIUM CANADIAN QUALITY: Made in Canada in a GMP-compliant facility by Advanced Orthomolecular Research (AOR), licensed under Health Canada NPN 80005719.
- TRUSTED SINCE 1991: From AOR - three decades of science-based, evidence-informed formulations manufactured in Canada to high quality standards.
Support gut, immune health & recovery the easy way
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Get it on Amazon.caWhy AOR L-Glutamine
One pure amino acid - four ways it supports your body.
Muscle Recovery
Helps repair and rebuild muscle tissue after activity. L-glutamine is stored in muscle and released during periods of physical stress.
Gut Integrity
Supports a healthy digestive-tract lining - L-glutamine is a primary fuel for the cells of the intestinal wall.
Immune Function
Aids immune-cell function and defence, helping you stay resilient after periods of physical stress.
Nitrogen Balance
Helps maintain proper nitrogen levels in the body through periods of recovery and physical demand.
Inside every serving
One pure amino acid - 5 g of L-glutamine per scoop, with no fillers or flavours.
How AOR compares
Why a clean, single-ingredient glutamine matters.
| AOR L-Glutamine | Typical blends | Bargain powders | |
|---|---|---|---|
| L-glutamine per serving | 5 g pure | Lower or combined | Often under-dosed |
| Non-medicinal ingredients | None | Fillers possible | Fillers / impurities |
| Sourcing | Made in Canada | Varies | Unclear |
| Allergen profile | Vegan · Non-GMO · Gluten-free | Varies | May contain allergens |
| Quality standard | GMP · NPN-licensed | Varies | Often uncertified |
How to use
Measure
Scoop one level 5 g serving of L-glutamine powder.
Mix
Stir into a glass of water or juice until dissolved - it's tasteless.
Take daily
Once per day on an empty stomach, or as directed by a health-care practitioner.
Stay consistent
Use daily; one 450 g jar lasts up to three months (90 servings).
What the research says about L-glutamine
Peer-reviewed studies and reviews on the amino acid L-glutamine - shared for education, not as claims about this finished product. AOR L-Glutamine's claims are the statements authorized under its Natural Health Product licence, NPN 80005719.
Fuel for the gut lining
Reviews describe L-glutamine as a primary energy substrate for enterocytes that supports the structure and function of the intestinal mucosa.
ReviewGlutamine and the gut microbiota
A review summarized glutamine's role in the interaction between the gut microbiota and intestinal health.
ReviewConditionally essential under stress
Glutamine demand rises during catabolic stress, when intestinal cells draw heavily on it as fuel.
ReviewSupports tight-junction integrity
Experimental work describes glutamine's role in protecting epithelial tight junctions that form the intestinal barrier.
Lab & reviewBarrier function under stress
Reviews link adequate glutamine to maintenance of intestinal permeability during physiological stress.
ReviewMucosal protection mechanisms
Glutamine is described as supporting mucosal growth and repair pathways in the gastrointestinal tract.
ReviewFuel for immune cells
Lymphocytes and macrophages consume glutamine at high rates; a classic review explains why it matters to immune-cell function.
ReviewImmune function & supplementation
A comprehensive review covered glutamine metabolism, immune function and clinical translation.
ReviewAfter prolonged exercise
An early trial examined oral glutamine and post-exercise immune-related outcomes in athletes after exhaustive exercise.
Human studyStrength recovery after eccentric exercise
A controlled trial reported faster recovery of muscle strength and reduced soreness with oral L-glutamine after eccentric knee-extension exercise.
Human RCTAnti-fatigue role in sport
A review discussed glutamine as an anti-fatigue amino acid in sports-nutrition contexts.
ReviewReleased from muscle under stress
Glutamine is stored in skeletal muscle and mobilized during physical stress, linking muscle reserves to recovery.
ReviewNitrogen transport
Glutamine is a major carrier of nitrogen and carbon between tissues, central to whole-body amino-acid metabolism.
ReviewMost abundant free amino acid
Reviews note glutamine is the most abundant free amino acid in blood and the body's free amino-acid pool.
ReviewNon-nutritive signalling roles
Beyond fuel, glutamine has signalling and regulatory effects on cell metabolism described in the literature.
ReviewGlutathione precursor support
Glutamine contributes to glutathione synthesis, part of the body's antioxidant defence system.
ReviewRedox balance under stress
Reviews connect glutamine availability to cellular redox balance during periods of metabolic stress.
ReviewHeat-shock & protective pathways
Glutamine has been linked to expression of protective heat-shock proteins in stressed cells.
Mechanistic reviewStudied in clinical nutrition
Glutamine has been studied as a conditionally essential nutrient in clinical-nutrition settings; reviews summarize the evidence and its limits.
ReviewMode of action under stress
A review examined glutamine's proposed mechanisms during catabolic and critical stress states.
ReviewPermeability in clinical contexts
Clinical-nutrition reviews discuss glutamine and intestinal permeability outcomes.
ReviewWhat glutamine is
L-glutamine is a non-essential amino acid that becomes conditionally essential when the body's needs outpace what it can make.
ReviewWhere it's stored
Skeletal muscle is the body's main glutamine reservoir, supplying other tissues on demand.
ReviewWhy supplement
Reviews note that dietary or supplemental glutamine can help meet elevated demand during physical stress.
ReviewFrequently asked questions
What is L-glutamine and what does it do?
L-glutamine is the most abundant amino acid in the body. It helps support immune and digestive system health - especially after periods of physical stress - and assists in muscle-cell repair after exercise.
How do I take it?
Adults take 5 g (1 scoop) in water per day on an empty stomach, or as directed by a qualified health-care practitioner. Do not exceed the daily dose unless instructed.
Does it have any taste?
No - the powder is tasteless and dissolves cleanly in water or juice, so it's easy to add to your daily routine.
What's in it besides glutamine?
Nothing. Each 5 g scoop is 5000 mg of pure L-glutamine with no non-medicinal ingredients - vegan, non-GMO, gluten-free and hypoallergenic.
How long does one jar last?
The 450 g jar provides 90 servings - up to a three-month supply at one scoop per day.
Is it made in Canada?
Yes. It is manufactured in Canada in a GMP-compliant facility by AOR and licensed by Health Canada under NPN 80005719.
Who should not use it?
Consult a health-care practitioner prior to use if you are following a low-protein diet, or if you are pregnant or breastfeeding.
Where do I buy it?
Use the orange button on this page - it takes you to the AOR listing on Amazon.ca for secure checkout and fast delivery.
Support gut, immune health & recovery the easy way
Get AOR L-Glutamine on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80005719. L-Glutamine helps support immune and digestive system health, especially after periods of physical stress. The research summaries below concern the amino acid L-glutamine and are educational - they are not claims about this finished product. Read and follow the label. Consult a health-care practitioner prior to use if you are following a low-protein diet, are pregnant or breastfeeding, or are taking other medications or supplements. Results may vary.
Important information
Safety Information
Cautions and Warnings: Consult a health-care practitioner prior to use if you are following a low-protein diet, or if you are pregnant or breastfeeding. Consult a health-care practitioner if symptoms persist or worsen. Do not exceed the recommended daily dose unless instructed by a health-care practitioner. Keep out of reach of children. Store in a cool, dry place. Sealed for your protection - do not use if the seal is broken.
Indications
Recommended Purpose: L-Glutamine helps support immune and digestive system health, especially after periods of physical stress. L-glutamine is stored in muscle and released during physical stress, and also assists in muscle-cell repair after exercise.
Ingredients
Medicinal ingredient (per 5 g / 1 scoop): L-Glutamine 5000 mg. Non-medicinal ingredients: None. Hypoallergenic; vegan, non-GMO and gluten-free. NMIs are subject to change - always read and follow the label.
Directions
Recommended Dose (Adults 19 years and older): Take 5 grams (1 scoop) in water per day on an empty stomach, or as directed by a qualified health-care practitioner. Do not exceed the daily dose unless instructed by a health-care practitioner.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.