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Dietary supplement

Quantum Glutamine Ingredients & Drug Interactions

by Quantum Nutrition Labs

Quantum Glutamine label
See full label image
Capsule Category: Amino Acid/protein
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Quantum Glutamine against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Quantum Glutamine is a dietary supplement by Quantum Nutrition Labs with 1 active ingredient. Its ingredients are commonly taken for muscle recovery and sports performance, gut health and 'leaky gut', recovery from severe illness or injury.Based on those ingredients, 50 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Glutamine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Quantum Glutamine by Quantum Nutrition Labs

Ask about any prescription or over-the-counter medication and we check it for interactions with Quantum Glutamine by Quantum Nutrition Labs — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Quantum Glutamine by Quantum Nutrition Labs

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Quantum Glutamine is a single-ingredient supplement: L-glutamine, an amino acid your body uses for gut health, immune function, and recovery from illness or surgery. The capsule also contains cellulose, water, and rice protein as inactive ingredients.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: immune health, gastrointestinal health, muscle recovery.
  • We looked for evidence on: Exercise-induced muscle damage, Postoperative recovery, Critical illness (trauma), Wound healing, Oral mucositis, Chemotherapy-induced diarrhea — and 4 related terms.
  • The strongest evidence on file: Glutamine is rated "Possibly Effective" for Critical illness (trauma) (Natural Medicines).
  • Also on file: Glutamine is rated "Possibly Effective" for Postoperative recovery.
  • Also on file: Glutamine is rated "Possibly Ineffective" for Crohn disease, Radiation-induced diarrhea.

The evidence supports glutamine for sickle cell disease. It's rated possibly effective for HIV/AIDS-related wasting, recovery after surgery, and critical illness from trauma.

The data we have doesn't establish effectiveness for other uses, so if you're considering glutamine for something else, ask your pharmacist what the evidence shows.

The evidence, ingredient by ingredient Glutamine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

L-glutamine is generally well tolerated in healthy adults. The most common side effects are gastrointestinal — belching, bloating, constipation, diarrhea, flatulence, nausea, and vomiting — especially at higher doses.

Headache and musculoskeletal pain have also been reported. If you have kidney or liver disease, use it only under medical supervision.

Not enough safety data exists for supplemental doses in pregnancy or while breastfeeding unless your doctor recommends it — talk with your clinician for personalized advice.

Side effects, ingredient by ingredient Glutamine

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Glutamine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: seizure medications.
  • For scale: 50 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take anticonvulsant medications (seizure drugs), check your exact medication in the tool below before using this product. Theoretically glutamine might reduce how well they work, though this hasn't been seen in patients yet.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Glutamine may help with sickle cell disease and possibly with recovery from surgery or critical illness. If you take anticonvulsant medication, check your specific drugs before starting.

People with kidney or liver disease, or those who are pregnant or breastfeeding, should talk to their doctor or pharmacist first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Feb 23, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Quantum Glutamine, straight from the product label.

Brand Quantum Nutrition Labs
Barcode (UPC) 807735108403
Net contents 100 Plant-Source Capsule(s)
Market status On market
Date entered into DSLD Feb 23, 2025
DSLD ID 329038
Product type Amino Acid/protein
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Quantum Glutamine by Quantum Nutrition Labs, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
807735108403
IngredientAmount% DV
L-Glutamine500 mg--

Other ingredients: Cellulose, Water, Rice Protein

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

Suggested use: Take 1 capsule, 3 times daily.

Formula

Glutamine is the most abundant amino acid in the body. It plays an important role in digestive functions, muscle support and workout enhancement.

The workout amino acid

The superior form: Our glutamine (free form) is derived from beneficial bacteria.

Formulation

Supports immune health Promotes gastrointestinal health Aids in muscle recovery after workouts

Quantum-State Muscle and Gastrointestinal Support

Non GMO

Pure Vegan

Based on clinical research

Heavy metal tested No added excipients

QNL's Quality Program: Manufactured to avoid: added magnesium stearate (an un-desirable excipient), artificial colors, artificial flavors or artificial preservatives.

Precautions

Tamper seal: Use only if seal is intact.

Consult your health practitioner if you are pregnant or nursing, taking medication or have a medical condition, before taking this product.

Keep out of reach of children.

Storage

Store in a cool, dry place.

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.

FDA Statement of Identity

Dietary Supplement

General Statements

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Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Quantum Glutamine by Quantum Nutrition Labs label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Quantum Glutamine label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Quantum Glutamine by Quantum Nutrition Labs

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

L-Glutamine

Interacts with
50 drugs
500 mg per serving

Glutamine is the most abundant amino acid in the body and is usually made in your muscles. A prescription form is FDA-approved to help reduce sickle c...

L-Glutamine monograph & interactions

Other (inactive) ingredients: Cellulose, Water, Rice Protein. These complete the product’s ingredient list but are not active constituents.

Interaction report

Quantum Glutamine by Quantum Nutrition Labs Drug Interactions

Want to check YOUR meds against Quantum Glutamine?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
50Drugs
50 Moderate

Ingredients driving the most interactions

L-Glutamine 50

Individual Drug Interactions

The ingredients in Quantum Glutamine interact with 50 drugs. Click any drug to see the details.

1 of the 1 ingredient in Quantum Glutamine interact with drugs. Each result below shows which ingredient is responsible. L-Glutamine

Each ingredient & the kinds of drugs it affects

For each ingredient in Quantum Glutamine with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

L-Glutamine1 drug type · 50 drugs

Anticonvulsants

Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Glutamine is metabolized to the excitatory neurotransmitter glutamate. Glutamate might have antagonistic effects with anticonvulsant drugs. However, this interaction has not yet been reported in humans.

Likelihood Possible Evidence D
L-Glutamine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Quantum Glutamine, from the product label.

Quantum Nutrition Labs

See all Quantum Nutrition Labs products
Name
Quantum Nutrition Labs
Pharmacist Counseling Corner

Quantum Glutamine by Quantum Nutrition Labs: Common Questions

Does Quantum Glutamine by Quantum Nutrition Labs interact with any medications?
Yes. Based on its ingredients, Quantum Glutamine has a known interaction with 50 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Quantum Glutamine contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is glutamine safe to take while I'm breastfeeding?
There isn't enough safety data to know either way. Talk with your doctor or pharmacist before using supplemental glutamine while breastfeeding — they can give you personalized advice based on your situation.
What are the most common side effects?
Digestive symptoms are most frequent: bloating, gas, constipation, diarrhea, and nausea. Headache and musculoskeletal pain have also been reported. Most people tolerate it well, but GI upset is more likely at higher doses.
Will glutamine help me recover faster after surgery?
The evidence says it's possibly effective for recovery after surgery, so it may help — but the proof isn't as strong as it is for sickle cell disease. Ask your surgeon or pharmacist whether it makes sense for your situation.
Can I take this if I have kidney disease?
No — only use it under medical supervision if you have kidney or liver disease. Check with your doctor before starting.
What is L-glutamine and what does it do?
L-glutamine is an amino acid — a building block your body uses for gut health, immune function, and recovery from illness or injury. It's naturally found in foods and made by your body, but supplements give you extra amounts.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Quantum Glutamine is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Quantum Glutamine label
Go deeper

The Full Monographs Behind Quantum Glutamine’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Glutamine

Interacts with 50 drugs

Glutamine is the most abundant amino acid in the body and is usually made in your muscles. A prescription form is FDA-approved to help reduce sickle cell disease complications, but for most...

Read the full Glutamine monograph →
Sources

Sources & How We Checked

Quantum Glutamine's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 11 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Glutamine 11 references
  1. Miller AL. Therapeutic considerations of L-glutamine: a review of the literature. Altern Med Rev 1999;4:239-48..
  2. Bozzetti F, Biganzoli L, Gavazzi C, et al. Glutamine supplementation in cancer patients receiving chemotherapy: a double-blind randomized study. Nutrition 1997;13:748-51.. PubMed
  3. Mebane AH. L-Glutamine and mania. Am J Psychiatry 984;141:1302-3.
  4. Meldrum BS. Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr 2000;130:1007S-15S.. PubMed
  5. Garlick PJ. Assessment of the safety of glutamine and other amino acids. J Nutr 2001;131:2556S-61S.. PubMed
  6. Chapman AG. Glutamate and epilepsy. J Nutr 2000;130:1043S-5S.. PubMed
  7. Ziegler TR. Glutamine supplementation in cancer patients receiving bone marrow transplantation and high dose chemotherapy. J Nutr 2001;131:2578S-84S.. PubMed
  8. Laviano A, Molfino A, Lacaria MT, Canelli A, De Leo S, Preziosa I, Rossi Fanelli F. Glutamine supplementation favors weight loss in nondieting obese female patients. A pilot study. Eur J Clin Nutr. 2014 Nov;68(11):1264-6. PubMed
  9. Endari (l-glutamine) [package insert]. Torrance, CA: Emmaus Medical,Inc; 2017.
  10. Niihara Y, Miller ST, Kanter J, et al. A Phase 3 Trial of l-Glutamine in Sickle Cell Disease. N Engl J Med 2018;379(3):226-35. doi: 10.1056/NEJMoa1715971.
  11. Ogden HB, Child RB, Fallowfield JL, et al. Gastrointestinal Tolerance of Low, Medium and High Dose Acute Oral l-Glutamine Supplementation in Healthy Adults: A Pilot Study. Nutrients. 2020;12(10):2953. PubMed

See these in context on the Glutamine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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