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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 Unflavored is a straightforward single-ingredient product: L-glutamine, an amino acid your body naturally produces. The powder form means you can mix it into drinks or soft foods.

There are no inactive ingredients or fillers in this product.

Does it work?

Strong 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

This product doesn't appear to be marketed for a specific use, so we graded Glutamine's overall clinical evidence instead.

Strong

Strong clinical evidence supports Glutamine for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Sickle cell disease — rated "Effective" (Natural Medicines).
  • On file: HIV/AIDS-related wasting — rated "Possibly Effective" (Natural Medicines).
  • On file: Critical illness (trauma) — rated "Possibly Effective" (Natural Medicines).
  • On file: Postoperative recovery — rated "Possibly Effective" (Natural Medicines).
  • On file: Pancreatitis — rated "Possibly Effective" (Natural Medicines).

L-glutamine shows solid evidence for sickle cell disease. It's rated possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma.

The evidence for those three areas exists but isn't as strong as it is for sickle cell disease. If you're considering this for another purpose, the data we hold doesn't establish its effectiveness for that use.

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 digestive: belching, bloating, constipation, diarrhea, flatulence, gas pain, and nausea.

Headache and musculoskeletal pain have also been reported. High doses (10–30 grams daily) used in trials for sickle cell disease increased reports of nausea, vomiting, constipation, diarrhea, and abdominal pain.

If you have kidney or liver disease, use glutamine only under medical supervision. Don't take supplement doses during pregnancy or breastfeeding unless your doctor advises it—there isn't enough safety data to know either way.

A couple of people with bipolar disorder reported mood changes (mania or hypomania) after taking glutamine, so if you have a mood disorder, talk 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 (used to prevent seizures), check with your doctor or pharmacist before starting this product. Glutamine might theoretically work against these drugs, though no human cases have been reported.

Run your complete medication list through the interaction checker below.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Gluta-Force works best if you have sickle cell disease or are recovering from surgery or critical illness—and possibly for HIV-related wasting. If you take an anticonvulsant, check with your doctor or pharmacist before you start, since there's a theoretical risk it could interfere.

Digestive upset is common, especially at high doses. Talk it over with your own healthcare provider to see if it 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 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) 045529589360
Net contents 2.2 lb; 1 kg
Market status On market
Date entered into DSLD Jan 25, 2013
DSLD ID 17719
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
190
UPC/BARCODE
045529589360
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

• Unflavored for Stacking Versatility

GLUTAMINE SUPPLEMENT

190 SERVINGS

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

Contents sold by weight not volume.

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.

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--936

Formula

5G L-GLUTAMINE PER SERVING

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

• 5 G of Pure L-Glutamine

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.

Formulation

• No Sugar

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 container190 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.
Is glutamine safe during pregnancy?
The safety data for glutamine in pregnancy is rated Likely Safe. However, there isn't enough reliable information to be completely certain, so talk with your doctor before taking it during pregnancy to make sure it's right for you.
Can I breastfeed while taking glutamine?
There isn't enough safety information on glutamine during breastfeeding. Avoid supplement doses while breastfeeding unless your doctor or lactation consultant advises you to take it.
What causes the bloating and gas?
Glutamine commonly causes digestive side effects like bloating, gas, and constipation when taken orally. These are usually mild, but if you're sensitive to them, you might want to start with a smaller dose and build up slowly, or talk with a pharmacist about how to minimize them.
Does glutamine actually work for sickle cell disease?
Yes—glutamine is rated Effective for sickle cell disease based on clinical evidence. It's possibly effective for HIV-related wasting, recovery after surgery, and critical illness, but the evidence for those uses is weaker.
Is this product safe if I have liver or kidney disease?
If you have kidney or liver disease, you should only use glutamine under your doctor's supervision. Talk with your healthcare provider before starting this product.
Can glutamine affect my mood?
In rare cases, people with bipolar disorder have reported mood changes (mania or hypomania) when taking glutamine. If you have a mood disorder, mention this product to your doctor before starting it.

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

Not sure if Gluta-Force 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.

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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