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Dietary supplement

Glutamine Unflavored Ingredients & Drug Interactions

by Beast Sports Nutrition

Glutamine Unflavored label
See full label image
Powder Category: Amino Acid/protein
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Glutamine Unflavored 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

Glutamine Unflavored is a dietary supplement by Beast Sports Nutrition 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 Glutamine Unflavored by Beast Sports Nutrition

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

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Glutamine Unflavored by Beast Sports Nutrition

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 Aug 6, 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.

This product is pure L-glutamine, an amino acid your body makes naturally and uses for muscle and intestinal health. One ingredient, one job — no fillers or other active compounds added.

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: muscle growth, recovery and endurance.
  • We looked for evidence on: Athletic performance, Exercise-induced muscle damage, Postoperative recovery, Wound healing, muscle protein synthesis, lean mass gain.
  • The strongest evidence on file: Glutamine is rated "Possibly Effective" for Postoperative recovery (Natural Medicines).
  • Also on file: Glutamine is rated "Possibly Ineffective" for Athletic performance.
  • Also on file: Glutamine is rated "Insufficient Reliable Evidence To Rate" for Wound healing, Exercise-induced muscle damage.

Glutamine is rated effective for sickle cell disease. It's possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma.

Evidence outside those areas isn't established in our data.

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.

Glutamine is generally well tolerated when taken by mouth in healthy people. Most side effects are mild and digestive — belching, bloating, gas, nausea, or diarrhea — especially at higher doses (10–30 grams daily).

A few rare cases of dizziness and mood changes (mania in people with bipolar disorder) have been reported. If you have kidney or liver disease, use it only under your doctor's supervision.

There isn't enough safety data to recommend supplement doses during pregnancy or while breastfeeding unless your doctor advises it — talk with your clinician about whether it's right for you.

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 medications with the tool on this page or talk with your pharmacist before starting glutamine — it might theoretically reduce how well they work, though this hasn't been reported in humans.

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 is most useful if you have sickle cell disease or are recovering from surgery or critical illness. If you take anticonvulsant medications, check with your pharmacist first.

People with kidney or liver disease should only use it under medical supervision. Talk with your doctor or pharmacist about whether this product fits your situation.

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 May 22, 2021.

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 Glutamine Unflavored, straight from the product label.

Brand Beast Sports Nutrition
Barcode (UPC) 631312809014
Net contents 10.58 Ounce(s); 300 Gram(s)
Market status On market
Date entered into DSLD May 22, 2021
DSLD ID 249540
Product type Amino Acid/protein
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating)
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 Glutamine Unflavored by Beast Sports Nutrition, 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:
5 Gram(s)
Maximum serving Sizes:
5 Gram(s)
Servings per container
60
UPC/BARCODE
631312809014
IngredientAmount% DV
L-Glutamine5 Gram(s)--

Other ingredients: None

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.
Formula

Glutamine is your body's most abundant amino acid. Replenishing your body with BEAST Glutamine Complex can enhance performance for long-term gains. Glutamine is vital in the process of protein synthesis to help build lean muscle. It is also anti-catabolic which means it helps minimize the breakdown of muscle tissue.

Glutamine supports protein synthesis to promote muscle growth, recovery and help minimize muscle breakdown.

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement use (1) one level scoop with 8-10 fl oz of water of your favorite beverage 1 to 2 times daily.

Formulation

Beast ingredients are routinely tested for: Raw material identification. Microbials to detect bacteria and mold. Heavy metals including mercury and lead.

Supports muscle Increase endurance Supports recovery & growth

Manufactured in the USA from domestic and imported ingredients in a FDA compliant facility.

General Statements

The strongest name in sports nutrition

Build muscle like a beast

FDA Statement of Identity

Dietary Supplement

Precautions

Allergen Warning: This product was produced in a facility that may also process ingredients containing milk, wheat, eggs, soybeans, crustacean shellfish, fish, and tree nuts.

Warning: Check with a qualified healthcare professional before using this product, or any dietary supplement, if you are under the age of 18 or if you have any known or suspected medical condition(s) and/or are taking any prescription or OTC medication(s).

Warning: Check with a qualified healthcare professional before using this product, or any dietary supplement, if you are under the age of 18 or if you have any known or suspected medical condition(s) and/or are taking any prescription or OTC medication(s). Do not use if you are pregnant or lactating.

Do not use if seal is broken or missing.

Keep out of reach of children.

Storage

Storage Conditions: 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.

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

See for yourself

Glutamine Unflavored by Beast Sports Nutrition label

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

Glutamine Unflavored 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 Glutamine Unflavored by Beast Sports Nutrition

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

Serving size5 Gram(s) Dosage formPowder Servings per container60 Amounts shown are per serving.

L-Glutamine

Interacts with
50 drugs
5 Gram(s) 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: None. These complete the product’s ingredient list but are not active constituents.

Interaction report

Glutamine Unflavored by Beast Sports Nutrition Drug Interactions

Want to check YOUR meds against Glutamine Unflavored?

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 Glutamine Unflavored interact with 50 drugs. Click any drug to see the details.

1 of the 1 ingredient in Glutamine Unflavored 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 Glutamine Unflavored 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 Glutamine Unflavored, from the product label.

Beast Sports Nutrition

See all Beast Sports Nutrition products
Name
Beast Sports Nutrition
Street Address
7491 North Federal Hwy. C5-148
City
Boca Raton
State
FL
ZipCode
33487
Web Address
beastsports.com
Pharmacist Counseling Corner

Glutamine Unflavored by Beast Sports Nutrition: Common Questions

Does Glutamine Unflavored by Beast Sports Nutrition interact with any medications?
Yes. Based on its ingredients, Glutamine Unflavored 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?
Glutamine Unflavored 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.
What is glutamine and what does it do?
L-glutamine is an amino acid your body produces naturally. It supports muscle recovery, intestinal health, and immune function, especially during times of physical stress like surgery, illness, or intense training. This product delivers it as a standalone supplement.
Does glutamine actually work?
It's proven effective for sickle cell disease. It shows promise for HIV/AIDS-related wasting, postoperative recovery, and recovery from critical illness, though more research is ongoing. For other uses, we don't have reliable evidence in our data.
What side effects should I expect?
Most people tolerate it well. Common side effects are mild and digestive — bloating, gas, nausea, diarrhea, or constipation — especially at high doses. Rare cases of dizziness and mood changes have been reported. Start with a lower dose to see how you respond.
Is it safe to take while pregnant or breastfeeding?
There isn't enough reliable safety data to recommend supplement doses during pregnancy or breastfeeding unless your doctor advises it. Talk with your doctor or midwife about whether it's right for your situation.
Can I take it if I have kidney or liver problems?
You should use glutamine only under medical supervision if you have kidney or liver disease. These organs affect how your body processes glutamine, so your doctor needs to oversee it. Check with them before starting.
Does it interact with seizure medications?
Glutamine might theoretically work against anticonvulsant drugs, since it becomes an excitatory brain chemical, but this hasn't been reported in actual patients yet. If you take seizure medication, check with your pharmacist before using this product.

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

Not sure if Glutamine Unflavored 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.

Glutamine Unflavored label
Go deeper

The Full Monographs Behind Glutamine Unflavored’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

Glutamine Unflavored'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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