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Dietary supplement

Gluta-Force Unflavored Ingredients & Drug Interactions

by ABB Performance

Gluta-Force Unflavored label
See full label image
Powder Category: Amino Acid/protein
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Gluta-Force 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

Gluta-Force Unflavored is a dietary supplement by ABB Performance 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 Gluta-Force Unflavored by ABB Performance

Ask about any prescription or over-the-counter medication and we check it for interactions with Gluta-Force Unflavored by ABB Performance — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Gluta-Force Unflavored by ABB Performance

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 30, 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.

Gluta-Force is a single-ingredient powder: L-glutamine, an amino acid your body makes naturally and uses for immune function, gut health, and muscle recovery. This product contains no inactive ingredients — it's glutamine only.

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

L-glutamine is effective for sickle cell disease and possibly effective for HIV/AIDS-related wasting, postoperative (after-surgery) recovery, and critical illness from trauma. The evidence for other claimed uses isn't established in the data we hold.

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 when taken by mouth. The most common side effects are belching, bloating, constipation, diarrhea, flatulence, nausea, vomiting, and gastrointestinal pain — especially at higher doses (10–30 grams daily or more).

Headache and dizziness have also been reported; one patient's dizziness resolved when the dose was cut in half. If you have kidney or liver disease, use this supplement only under medical supervision.

There isn't enough safety data to recommend supplemental glutamine in pregnancy and lactation unless your doctor says otherwise. Two cases of mania or hypomania have been reported in people with bipolar disorder taking glutamine, so if you have a mood disorder, check with your doctor before starting.

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 with your doctor or pharmacist before using this product — glutamine may theoretically interfere with how they work, though this hasn't been confirmed 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.

Gluta-Force may help with sickle cell disease and might support recovery after surgery or serious illness — but the evidence for other uses isn't solid yet. If you take seizure medication, don't start this without clearing it with your doctor or pharmacist first.

For most people in good health, it's generally well tolerated, though digestive upset and headache can happen. Talk it over with your own healthcare provider before you begin.

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 Jan 25, 2013.

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 Gluta-Force Unflavored, straight from the product label.

Brand ABB Performance
Barcode (UPC) 045529589353
Net contents 1.1 lb; 500 g
Market status On market
Date entered into DSLD Jan 25, 2013
DSLD ID 17717
Product type Amino Acid/protein
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), 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 Gluta-Force Unflavored by ABB Performance, 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:
5.25 Gram(s)
Maximum serving Sizes:
5.25 Gram(s)
Servings per container
95
UPC/BARCODE
045529589353
IngredientAmount% DV
L-Glutamine5 g--

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.
General Statements

GLUTAMINE IS THE MOST ABUNDANT AMINO ACID IN MUSCLE. Your body can normally produce enough, but when you’re taking performance to the limit, an extra shot of pure glutamine can support recovery.

It’s the recovery supplement for those who put a greater effort into every rep.

• Unflavored for Stacking Versatility

GLUTAMINE SUPPLEMENT

95 SERVINGS

This product contains ingredients of international and domestic origin MADE IN THE USA

Contents sold by weight not volume.

Formula

Each serving of ABB’s Gluta-Force(R) provides 5 grams of pure L-glutamine.

• 5 G of Pure L-Glutamine

5G L-GLUTAMINE PER SERVING

Formulation

• No Sugar

FDA Disclaimer Statement

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

General

12-023-935

Seals/Symbols

ABB(R) PERFORMANCE

Precautions

NOTICE: Do not use as a sole source of nutrition. Not for use by those with pre-existing medical conditions or taking any medications, those under the age of 18 or women that are pregnant or nursing.

Storage

Store in a cool, dry place.

Suggested/Recommended/Usage/Directions

DIRECTIONS • Pour 8 oz (240 mL) of water or your favorite beverage into a glass • Mix in 1 rounded teaspoon of Gluta-Force(R) Powder • Stir clockwise & counter-clockwise until thoroughly mixed ADVANCED OPTIONS • Stack Gluta-Force(R) with your post-workout protein shake and/or Crea-Force(R) to create an even more powerful recovery supplement SUGGESTED USE Consume one serving of Gluta-Force(R) post-workout and/or between meals to support muscle recovery from intense exercise.

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

See for yourself

Gluta-Force Unflavored by ABB Performance label

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

Gluta-Force 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 Gluta-Force Unflavored by ABB Performance

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

Serving size5.25 Gram(s) Dosage formPowder Servings per container95 Amounts shown are per serving.

L-Glutamine

Interacts with
50 drugs
5 g 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

Gluta-Force Unflavored by ABB Performance Drug Interactions

Want to check YOUR meds against Gluta-Force 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 Gluta-Force Unflavored interact with 50 drugs. Click any drug to see the details.

1 of the 1 ingredient in Gluta-Force 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 Gluta-Force 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 Gluta-Force Unflavored, from the product label.

ABB Performance

See all ABB Performance products
Name
ABB PERFORMANCE
City
Walterboro
State
SC
ZipCode
29488
Phone Number
1-866-353-9222
Web Address
WWW.ABBPERFORMANCE.COM
Pharmacist Counseling Corner

Gluta-Force Unflavored by ABB Performance: Common Questions

Does Gluta-Force Unflavored by ABB Performance interact with any medications?
Yes. Based on its ingredients, Gluta-Force 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?
Gluta-Force 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 does L-glutamine do in the body?
L-glutamine is an amino acid that supports immune function, gut health, and muscle recovery. Your body makes it naturally, and it plays a role in wound healing and critical illness recovery.
What are the most common side effects?
Belching, bloating, constipation, diarrhea, flatulence, nausea, and vomiting are the most reported. These tend to show up more with higher doses. Headache and dizziness can also occur but are less common.
Is it safe to use while pregnant or breastfeeding?
The data rates glutamine as likely safe in pregnancy. However, there isn't enough information to know about safety during breastfeeding — talk with your doctor or pharmacist for personalized advice if you're nursing.
Can I use this if I have kidney or liver problems?
Not without medical supervision. If you have kidney or liver disease, check with your doctor before taking this supplement.
Does this work for muscle building or general fitness?
The evidence we hold shows glutamine is effective for sickle cell disease and possibly effective for recovery after surgery and serious illness. Evidence for fitness or general muscle use isn't established in our data.
What if I have bipolar disorder?
Two cases of mania or hypomania have been reported in people with bipolar disorder taking glutamine supplements. If you have a mood disorder, talk with your doctor before starting this product.

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

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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.

Gluta-Force Unflavored label
Go deeper

The Full Monographs Behind Gluta-Force 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

Gluta-Force 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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