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Dietary supplement

Cutler Essentials Glutamine Unflavored Ingredients & Drug Interactions

by Cutler Nutrition

Cutler Essentials Glutamine Unflavored label
See full label image
Powder Category: Amino Acid/protein
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Cutler Essentials 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

Cutler Essentials Glutamine Unflavored is a dietary supplement by Cutler 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 Cutler Essentials Glutamine Unflavored by Cutler Nutrition

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

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Cutler Essentials Glutamine Unflavored by Cutler 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 Oct 1, 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, a single active ingredient that's an amino acid your body naturally makes and uses. It's a building block for protein and plays a role in immune function, gut health, and nitrogen metabolism.

There are no inactive ingredients—you're getting glutamine powder and nothing else.

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 lean muscle protein synthesis.
  • We looked for evidence on: Exercise-induced muscle damage, Postoperative recovery, Critical illness (trauma), Wound healing, Sports performance, Protein metabolism.
  • 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 "Insufficient Reliable Evidence To Rate" for Wound healing, Exercise-induced muscle damage.

The evidence backs glutamine for sickle cell disease (it's rated Effective). For HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma, the data suggests it's possibly effective, though the evidence isn't as strong.

If you're considering glutamine for one of these conditions, talk it over with your doctor about whether it fits your situation.

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 mild and gastrointestinal—belching, bloating, constipation, diarrhea, flatulence, nausea, vomiting, and gas pain.

Some people report headache or musculoskeletal pain. If you have kidney or liver disease, use it only under medical supervision.

There isn't enough safety data to recommend supplement doses during pregnancy, and there's limited information for breastfeeding—talk with your doctor or pharmacist before using it if you're pregnant or nursing. A couple of cases of mania or mood changes have been reported in people with bipolar disorder taking high doses, so if you have a mood disorder, check with your healthcare provider first.

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 anticonvulsants (seizure medications), check with your doctor or pharmacist before using this product—glutamine may theoretically interfere with how they work. No other medication interactions are documented for the ingredient we could check.

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 wasting from HIV/AIDS, recovery after surgery, or critical illness. The main caution is if you take seizure medications—check with your doctor before adding this.

It's generally mild on your stomach, though some people do experience gas, bloating, or nausea. Talk it over with your pharmacist or doctor before starting, especially if you have kidney or liver disease or a mood disorder.

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 Cutler Essentials Glutamine Unflavored, straight from the product label.

Brand Cutler Nutrition
Barcode (UPC) 850002859812
Net contents 300 Gram(s); 10.58 Ounce(s)
Market status On market
Date entered into DSLD May 23, 2024
DSLD ID 310075
Product type Amino Acid/protein
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 Cutler Essentials Glutamine Unflavored by Cutler 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:
10 Gram(s)
Servings per container
60
UPC/BARCODE
850002859812
IngredientAmount% DV
L-Glutamine5 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

Glutamine (L-Glu-ta-mine): A hydrophilic amino acid which is a constituent of most proteins. Glutamine is one of the most abundant amino acids that plays a key role in muscle recovery.

100% pure L-glutamine 5 g per serving

Formulation

Lean muscle Protein synthesis

Allergen Warning: None

Precautions

Warning: Not intended for persons under the age of 18.

Do not exceed the recommended dose.

If you are pregnant, nursing, allergic, or have a medical condition, or are taking any medications such as MAOI inhibitors, antidepressants, aspirin, nonsteroidal and inflammatory drugs.

If you are pregnant, nursing, allergic, or have a medical condition, or are taking any medications such as MAOI inhibitors, antidepressants, aspirin, nonsteroidal and inflammatory drugs.

Consult your physician prior to use if you have a medical condition, including but not limited to, heart, liver, kidney, or thyroid disease, diabetes, high blood pressure, or cardiac arrhythmia. Do not use if product has been opened or tampered with in any other way.

Keep out of reach of children.

Storage

Store in a cool, dry place.

Seals/Symbols

Manufactured in the USA using domestic & imported ingredients

Suggested/Recommended/Usage/Directions

1 scoop per day for optimal recovery

Recommended use: As a dietary supplement, mix 1-2 servings (1-2 scoops (5-10 g)) of glutamine with 8 oz of your favorite beverage of choice post-training.

General Statements

Train like a pro Recovery

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.

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

See for yourself

Cutler Essentials Glutamine Unflavored by Cutler Nutrition label

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

Cutler Essentials 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 Cutler Essentials Glutamine Unflavored by Cutler 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
Interaction report

Cutler Essentials Glutamine Unflavored by Cutler Nutrition Drug Interactions

Want to check YOUR meds against Cutler Essentials 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 Cutler Essentials Glutamine Unflavored interact with 50 drugs. Click any drug to see the details.

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

Cutler Nutrition

See all Cutler Nutrition products
Name
Cutler Nutrition
Street Address
3625 W Teco Ave Suite 5
City
Las Vegas
State
NV
ZipCode
89118
Web Address
www.JAYCUTLER.com
Pharmacist Counseling Corner

Cutler Essentials Glutamine Unflavored by Cutler Nutrition: Common Questions

Does Cutler Essentials Glutamine Unflavored by Cutler Nutrition interact with any medications?
Yes. Based on its ingredients, Cutler Essentials 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?
Cutler Essentials 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.
Will this cause bloating or stomach upset?
Possibly. Belching, bloating, constipation, diarrhea, nausea, and gas pain are the most commonly reported side effects. If you notice these, try a lower dose or talk with your pharmacist about timing and how to take it.
Is it safe to take while pregnant?
The data supports glutamine as likely safe in pregnancy. Even so, it's smart to run it by your doctor or pharmacist before you start, since pregnancy decisions are individual.
Can I take this while breastfeeding?
There isn't enough safety information to say either way. Talk with your doctor or pharmacist before using supplement doses while breastfeeding—they can give you personalized advice based on your situation.
What does L-glutamine actually do in my body?
It's an amino acid your body makes naturally. It helps build and repair muscle protein, supports your immune system, and keeps your gut lining healthy. It also plays a role in nitrogen metabolism.
Does this really work for sickle cell disease?
The evidence shows it's effective for sickle cell disease. For other uses like recovery after surgery or HIV/AIDS-related wasting, the evidence suggests it may help, but it's not as strong.
Should I be worried about the ammonia it breaks down into?
Glutamine metabolizes to both glutamate and ammonia—both can affect the brain, especially in people with liver disease or neurological conditions. If you have either, use it only under medical supervision.

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

Not sure if Cutler Essentials 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.

Cutler Essentials Glutamine Unflavored label
Go deeper

The Full Monographs Behind Cutler Essentials 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

Cutler Essentials 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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