• A black NutraBio Glutamine container labeled "Premium Grade Amino Acid" (NB in green) offers 100 servings of pure, unflavored L-Glutamine. This vegan supplement supports fitness goals and muscle recovery.
  • NutraBio Glutamine is a pure vegan L-Glutamine amino acid supplement. Each 5g scoop delivers 5g L-Glutamine; there are 100 servings per black container, shown below the supplement facts label.
  • Black, gray, and yellow label for NutraBio Glutamine, a pure vegan L-Glutamine amino acid. Features directions, supplement facts, "NB ETHICS" seal, barcode, US flag, and CheckMySupps.com QR code.
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Glutamine

Glutamine

100% pure, free-form L-Glutamine made from natural vegetable fermentation with no fillers, additives, or animal byproducts.
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Glutamine
$29.99
$29.99
NUTRABIO QUALITY GUARANTEE

NUTRABIO QUALITY GUARANTEE

Made in the USA • Third-Party Tested • Fully Transparent Labels • Fully Dosed Formulas

100% pure, free-form L-Glutamine made from natural vegetable fermentation with no fillers, additives, or animal byproducts.

Description

How To Use

Key Ingredients

Dietary Restrictions

Delivery & Returns

SKU: 23040
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Ultra-Pure L-Glutamine for Recovery, Immune & Gut Support

Delivers a single-ingredient amino acid formula made via vegetable fermentation to support muscle repair, immune cell function and intestinal barrier health.

5 g
L-Glutamine
ZERO
Fillers or Excipients
100%
Vegetarian

The Science-Backed Edge

Every ingredient is chosen with purpose and backed by science to deliver meaningful results. Whether it’s wellness or performance, each formula is fully dosed and built with innovation to help your body function at its highest potential.
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Live Without Compromise

We are dedicated to helping you achieve real results by ensuring every product is made with the highest-quality ingredients and uncompromising standards. Our commitment to excellence is built to help you reach your potential and live without compromise.
  • A stylized black and white illustration of a flexed muscular arm with an arrow wrapped around it, symbolizing strength and growth.

    Muscle Recovery

    Helps speed repair of muscle tissue and reduce breakdown after intense training.

  • Black and white graphic showing a DNA double helix intertwined with a shield, symbolizing protection or security related to genetics or DNA.

    Immune Support

    Supports immune cell resilience and function during periods of physical or physiological stress.

  • A black, stylized outline of an intestine with a solid black shield shape in the center, symbolizing gut protection or digestive health. The design is minimalistic on a white background.

    Gut Support

    Contributes to intestinal barrier health and nutrient absorption which supports overall digestive function.

  • Black and white stylized silhouette of a muscular figure flexing both arms, highlighting well-defined muscles in the chest, arms, and torso, with a faceless head.

    Lean Muscle Mass

    Free-form amino acid supply helps preserve lean tissue in calorie restriction or heavy training.

  • A black and white graphic shows a hexagonal badge with a speedometer in the center, flanked by stylized barbell weights on both sides.

    Recovery & Intra Workout

    Use pre-, post- or during training to support recovery, reduce soreness and maintain training volume.

  • A black silhouette of a person sitting with arms raised, surrounded by angular shapes resembling stylized spikes or rays, all outlined in white.

    Wellness & Daily Health

    A foundational amino acid formula that supports full-body resilience, recovery readiness and consistent performance.
A man with a beard and muscular build stands in a gym, wearing a black sleeveless shirt and a large black NutraBio backpack with patches. Gym equipment and colorful wall art are visible in the background.

Premium Glutamine Full-Body Wellness

Recover Faster

With 5 g of pure glutamine per serving you support muscle repair and reduce breakdown so you recover stronger and quicker.

Support Immune & Gut Integrity

This formula supports immune cell function and gut barrier health so you stay resilient through training and life.

Maintain Lean Performance

Free-form glutamine keeps your body in an anabolic or recovery-ready state day after day to support performance, lean mass and overall wellness.

Overall rating: 4.962963 / 5 from 54 reviews.

AI Generated Review Summary

Glutamine offers 100% pure L-Glutamine sourced from natural vegetable fermentation, manufactured in the USA under strict quality control. Customers appreciate its clean taste, high quality, and lack of artificial ingredients, fillers, or excipients. The product is vegan, non-GMO, and allergen-free, providing a simple and clean option for supplementation.

Summary topics

  • Taste: 13%
  • Glutamine Quality: 25%
  • Supplement Quality: 16%
  • Price: 13%
  • Product Quality: 32%

Review topics: ["quality","supplement","price","glutamine","mixes"].

Review highlights

  • "Good product nice and pure and price was good for the big tub of it." — Thomas M.
  • "It’s your basic glutamine, does what it’s supposed to and it’s good quality." — Jose F.
  • "i love that nutrabio’a glutamine and most supplements have no extra stuff in them." — Kimberley C.

Reviews

Recovery is Key

"I use NutraBio's glutamine multiple times daily - once in morning with my morning water and again intra workout, along with IntraBlast and Creatine. This is one of the best recovery products out there especially if you are training hard multiple days a week. It mixes so well and can be added to anything you prefer. I will continue including Glutamine in my daily routine, even on non-training days, because recovery is so important!"

— Salvatore T. (5/5)

Bailey glutamine review

"I am very happy with this product. It does everything I need it to do and I’m not going back to any other glutamine brand"

— Bailey R. (5/5)

Cleanest Glutamine

"Best glutamine on the market being an athlete and having IBS I’ve noticed a difference daily! The taste is bland so literally just pour it in water stir it and drink away!"

— Nesha W. (5/5)

Love it

"I take quite a bit of supplements from NutraBio’s line. It’s a great brand with great products at a reasonable price."

— Jonathan S. (5/5)

Glutamine

"Been using this product for quite awhile now , it’s made without gluten which is a plus for me . Take a scoop after I work out and also if my stomach is upset helps soothe my stomach. Great product which I recommend . ."

— Janie (5/5)

Another must have

"Like creatine, probably runs a close 2nd for recovery and being an athlete."

— Michael (5/5)

Glutamine

"I really like the product. Just wish it mixed a little better"

— Stephanie W. (5/5)

Love it!

"Love this product! I take it before bed."

— Mark (5/5)

Thank you

"Great product"

— William L. (5/5)

Love it

"Love it"

— Raju (5/5)

Q&A