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Dietary supplement

100% Pure Glutamine Powder 4.5 g Ingredients & Drug Interactions

by Body Fortress

100% Pure Glutamine Powder 4.5 g label
See full label image
Powder 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 100% Pure Glutamine Powder 4.5 g 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

100% Pure Glutamine Powder 4.5 g is a dietary supplement by Body Fortress 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 100% Pure Glutamine Powder 4.5 g by Body Fortress

Ask about any prescription or over-the-counter medication and we check it for interactions with 100% Pure Glutamine Powder 4.5 g by Body Fortress — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of 100% Pure Glutamine Powder 4.5 g by Body Fortress

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.

This product contains one active ingredient: L-glutamine, an amino acid your body naturally produces. Each serving delivers 4.5 grams.

Glutamine plays a role in immune function, gut health, and muscle recovery — your body makes more of it during intense exercise or stress, but supplemental doses are sometimes used to support healing after surgery, during critical illness, or in certain medical conditions like HIV-related weight loss.

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 recovery and sports performance.
  • We looked for evidence on: Athletic performance, Exercise-induced muscle damage, Postoperative recovery, Critical illness (trauma), Wound healing, Strength training — and 2 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 Athletic performance.

The evidence strongest for glutamine is in sickle cell disease, where it's rated effective. For HIV/AIDS-related wasting, postoperative recovery, and trauma or critical illness, the evidence suggests it may help, though the research is still developing.

The data we hold doesn't establish effectiveness for other uses you might see claimed.

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 in healthy adults. The most common side effects are digestive — belching, bloating, gas, constipation, diarrhea, nausea, and stomach pain.

Headache and musculoskeletal pain have also been reported. A small number of people have experienced dizziness; one case improved when the dose was lowered.

Very rarely, people with bipolar disorder taking glutamine have reported mood changes (mania or hypomania), though this is uncommon. If you have kidney or liver disease, use glutamine only under a doctor's supervision.

The safety data in pregnancy is adequate — it's rated likely safe. However, there isn't enough reliable information about breastfeeding, so talk with your doctor or pharmacist before taking it while nursing.

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.

Anticonvulsants (seizure medications) are the main concern — glutamine may theoretically reduce how well they work, though this hasn't been seen in patients yet. Check any seizure medication you take with the tool below before starting this supplement.

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 worth considering if you're recovering from surgery, dealing with critical illness, or have sickle cell disease — the evidence is strongest there. If you take seizure medications (anticonvulsants), check with your pharmacist first because of a theoretical interaction.

People with kidney or liver disease should get medical clearance. A quick medication check on this page will give you confidence before you start.

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 23, 2024.

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 100% Pure Glutamine Powder 4.5 g, straight from the product label.

Brand Body Fortress
Barcode (UPC) 074312055775
Net contents 10.6 Ounce(s); 300 Gram(s)
Market status On market
Date entered into DSLD May 23, 2024
DSLD ID 310105
Product type Amino Acid/protein
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar 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 100% Pure Glutamine Powder 4.5 g by Body Fortress, 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:
4.6 Gram(s)
Maximum serving Sizes:
4.6 Gram(s)
Servings per container
65
UPC/BARCODE
074312055775
IngredientAmount% DV
Calories20 Calorie(s)--
L-Glutamine4.5 Gram(s)--

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

Body Fortress builds the foundation for your training routine with products designed to deliver results with no added hype. That's why we designed 100% pure glutamine, to deliver just that; only 4.5 g of pure glutamine in each scoop. Training hard can take a toll on your muscles as glutamine levels may decrease, 100% pure glutamine is the ultimate recovery fuel that will help you replenish this key nutrient lost during training and assist in your recovery. Reload with Body Fortress Pure Glutamine.

General Statements

Blood Glutamine Levels mmols/L Continued hard training can decrease glutamine levels 630 Baseline 489 Day 6 328 Day 11 Keast, D. The Medical Jrnl of Australia. 1995.

For more information on other Body Fortress products or for complete training and nutrition programs, visit www.bodyfortress.com America's #1 muscle and strength development powder brand Source: Nielsen xAOC 52 weeks ending 1/27/18

Please recycle

Suggested/Recommended/Usage/Directions

Directions: For adults, mix one (1) teaspoon (4.6 g) into 4-8 ounces of water or your favorite beverage and take one hour before your workout. Consume a second serving immediately after your workout to speed recovery.

Precautions

As a reminder, discuss the supplements and medications you take with your health care providers.

Not intended for use by persons under the age of 18.

Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur. For your protection, do not use if seal under cap is broken or missing.

Keep out of reach of children.

Formulation

Free of: Yeast, wheat, milk or milk derivatives, lactose, sugar, preservatives, soy, artificial color, artificial flavor, sodium (less than 5 mg per serving).

Ultimate recovery fuel Boosts post-workout recovery

Zero aspartame - zero gluten

Manufactured according to cGMP standards, as is required for all dietary supplements.

Storage

Contents are sold by weight. Some settling may occur.

Store at room temperature, tightly closed and avoid excessive heat.

Brand IP Statement(s)

Body Fortress Your body Your fortress

FDA Statement of Identity

Dietary 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.

Seals/Symbols

cGMP manufactured GF Gluten Free Made in the USA from select ingredients from around the world.

NSF Contents Tested & Certified

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

See for yourself

100% Pure Glutamine Powder 4.5 g by Body Fortress label

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

100% Pure Glutamine Powder 4.5 g 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 100% Pure Glutamine Powder 4.5 g by Body Fortress

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

Serving size4.6 Gram(s) Dosage formPowder Servings per container65 Amounts shown are per serving.

L-Glutamine

Interacts with
50 drugs
4.5 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
Interaction report

100% Pure Glutamine Powder 4.5 g by Body Fortress Drug Interactions

Want to check YOUR meds against 100% Pure Glutamine Powder 4.5 g?

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 100% Pure Glutamine Powder 4.5 g interact with 50 drugs. Click any drug to see the details.

1 of the 1 ingredient in 100% Pure Glutamine Powder 4.5 g 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 100% Pure Glutamine Powder 4.5 g 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 100% Pure Glutamine Powder 4.5 g, from the product label.

Body Fortress

See all Body Fortress products
Name
United States Nutrition, Inc.
City
Bohemia
State
NY
ZipCode
11716
Phone Number
1-800-215-5980
Web Address
www.bodyfortress.com
Pharmacist Counseling Corner

100% Pure Glutamine Powder 4.5 g by Body Fortress: Common Questions

Does 100% Pure Glutamine Powder 4.5 g by Body Fortress interact with any medications?
Yes. Based on its ingredients, 100% Pure Glutamine Powder 4.5 g 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?
100% Pure Glutamine Powder 4.5 g 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 during pregnancy and while breastfeeding?
Glutamine is rated likely safe in pregnancy, so you'd be okay there. For breastfeeding, we don't have enough reliable safety information, so it's best to talk with your doctor or pharmacist for personalized advice rather than starting it on your own.
What are the most common side effects?
The most common ones are digestive — bloating, gas, constipation, diarrhea, nausea, and stomach pain. Headache has also been reported. These tend to be mild, but if they bother you, lowering the dose sometimes helps.
Can I take this if I have kidney or liver disease?
Not without talking to your doctor first. People with kidney or liver disease should only use glutamine under medical supervision, so get clearance before you start.
Does glutamine actually work for muscle recovery after workouts?
The evidence we have is strongest for sickle cell disease (where it's effective) and for recovery after surgery or critical illness (where it may help). We don't have effectiveness data for general muscle recovery from normal exercise in our facts.
What is L-glutamine and why is it in this product?
L-glutamine is an amino acid your body makes naturally. It plays a role in immune function, gut health, and muscle repair — especially important when your body is under stress from surgery, illness, or intense demands.

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

Not sure if 100% Pure Glutamine Powder 4.5 g 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.

100% Pure Glutamine Powder 4.5 g label
Go deeper

The Full Monographs Behind 100% Pure Glutamine Powder 4.5 g’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

100% Pure Glutamine Powder 4.5 g'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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