Best L Glutamine Powder

Peter | 03-01-2026

You will find our hand-picked selection of Best L Glutamine Powder below. You have a wide variety of choices of brands such as Nutricost,HUJ,Whole Foods Market,THORNE available to you as a result of the fact that each one of them has a unique pricing, look, and feel. Continue reading for an in-depth analysis in our Best L Glutamine Powder buying guide!

Our experts tested a variety of Best L Glutamine Powder on the market. Right at the top of the list is Nutricost Best L Glutamine Powder. Check out some more of our favorites below, and read some valuable insight from our experienced editors.

Editor's Choice
Nutricost L-Glutamine Powder (500 Grams) Unflavored - Gluten Free & Non-GMO, 100 Servings
Nutricost L-Glutamine Powder (500 Grams) Unflavored - Gluten Free & Non-GMO, 100 Servings
Premium Pick
Nutricost L-Glutamine Powder 250 Grams
Nutricost L-Glutamine Powder 250 Grams
Budget Pick
HUJ L-Glutamine Nutrition Pack - Contains Polydextrose and Oat Dietary Fiber - 5000mg High-Potency
HUJ L-Glutamine Nutrition Pack - Contains Polydextrose and Oat Dietary Fiber - 5000mg High-Potency

Top 10 Best L Glutamine Powder

We researched and compared the top products in the Best L Glutamine Powder category to provide you with these recommendations.

1. Nutricost L-Glutamine Powder (500 Grams) Unflavored - Gluten Free & Non-GMO, 100 Servings

Nutricost L-Glutamine Powder (500 Grams) Unflavored - Gluten Free & Non-GMO, 100 Servings
9.1

Nutricost

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  • 5000mg of L-Glutamine Powder Per Serving (100 Servings)
  • 1.1 Pounds (500G) of L-Glutamine Powder Per Bottle
  • Vegetarian Friendly L-Glutamine Powder
  • Non-GMO, Gluten Free, Soy Free
  • Manufactured In a NSF Certified, GMP Compliant, FDA Registered Facility

2. Nutricost L-Glutamine Powder 250 Grams

Nutricost L-Glutamine Powder 250 Grams
9.1

Nutricost

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  • 250 Grams of L-Glutamine Per Bottle
  • 50 Servings of L-Glutamine Per Bottle
  • 5 Grams of L-Glutamine Per Serving (Scoop Included)
  • Vegan, Non-GMO, Gluten Free, Unflavored (No Flavoring Added - Natural)
  • Manufactured In a NSF Certified, GMP Compliant, FDA Registered Facility

3. HUJ L-Glutamine Nutrition Pack - Contains Polydextrose and Oat Dietary Fiber - 5000mg High-Potency

  • High-Dose L-Glutamine: Glutamine is an amino acid that supports various bodily functions, including protein synthesis, immune system support, and gut health support. HUJ's L-Glutamine Nutrition Pack delivers high-dose, pure glutamine (5000mg) to provide steady daily support for your body.
  • Gut Health Support: As the primary fuel source for small intestinal cells, glutamine plays a vital role in maintaining the integrity of the intestinal lining, helping to support a healthy digestive tract.
  • Specialty Fiber Blend: Water-soluble dietary fibers polydextrose and oat fiber serve as an excellent food source for probiotics. Oat fiber also supports regular intestinal peristalsis, and together these two fibers help you maintain a healthy gut microbiome environment.
  • How To Use & Warning: Take 2 bags daily before meals or bedtime. Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or allergic to any ingredients.
  • Quality You Can Trust: Formulated by health experts, this product contains no added hormones or artificial colors, making it ideal for long-term consumption.

4. Nutricost L-Glutamine Powder 1 KG - Unflavored, Non-GMO, Gluten Free

Nutricost L-Glutamine Powder 1 KG - Unflavored, Non-GMO, Gluten Free
8

Nutricost

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  • Quality Assurance: 3rd Party Tested, Non-GMO, and Gluten Free
  • Product Size: Contains 1 kilogram (2.2 pounds) of pure L-Glutamine powder
  • Manufacturing Standards: Produced in a NSF-Certified, GMP-compliant and FDA-registered facility in the USA
  • Clean Formula: Simple and pure ingredients without artificial fillers or additives
  • Dietary Compatibility: Suitable for vegan diets and free from gluten

5. 365 by Whole Foods Market, L-Glutamine Free-Form Powder, 8 oz

365 by Whole Foods Market, L-Glutamine Free-Form Powder, 8 oz
8.7

Whole Foods Market

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  • 8 oz L-Glutamine free-form powder
  • Supports muscle tissue production and protection
  • Perfect for active lifestyles and protein supplementation
  • Premium quality amino acid supplement
  • Free from artificial colors, flavors, and preservatives
  • Manufactured following GMP guidelines
  • Whole Foods Market quality guaranteed

6. THORNE - L-Glutamine Powder - Glutamine Powder for GI Health and Immune Function* - 17.8 Oz

  • Muscles: Supports muscle recovery after exercise or injury*
  • Multiple Benefits: Promotes GI and nerve health and healthy immune function*
  • Additional Support: Supports cellular repair and collagen formation*
  • 3rd Party Contents Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label
  • Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)

7. L Glutamine Powder 1.1lbs (100 Servings of 5 Grams Each - Third Party Tested L-Glutamine Powder)

L Glutamine Powder 1.1lbs (100 Servings of 5 Grams Each - Third Party Tested L-Glutamine Powder)
8.3

Double Wood Supplements

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  • 1.1LBS (500 GRAMS) OF THIRD PARTY TESTED 99% PURE, UNFLAVORED L- GLUTAMINE POWDER: Our L-Glutamine Supplement for women and men is the perfect way to support exercise endurance and support gut health. Compared to L-Glutamine capsules, the powdered version allows for larger, more effective doses
  • VEGETARIAN AND KETO FRIENDLY L-GLUTAMINE: Double Wood's L-Glutamine nutritional supplement (El Glutamina) is not synthesized from animal sources and is safe for both Vegetarians and those in ketosis
  • GLUTAMINE FOR GUT HEALTH AND EXERCISE ENDURANCE: L-Glutamine Powder may help with leaky gut repair, bloating, gas, discomfort, and intestinal wall support. It may also help promote exercise endurance in the gym
  • ROOTED IN QUALITY: Manufactured and Tested in the USA from Globally Sourced Ingredients. Double Wood's L-Glutamine is manufactured and tested for microbes and heavy metals right here in the USA from Globally Sourced Ingredients. Plus, it is Non-GMO and gluten-free
  • WE BOTTLE WELLNESS: At Double Wood we provide pure, potent supplements that deliver exceptional value, all backed by careful sourcing and rigorous third-party testing. Common spellings include (L-Glutamine, L Glutamine, LGlutamine)

8. NOW Foods Sports Nutrition, L-Glutamine Pure Powder, Nitrogen Transporter*, Amino Acid, 1-Pound

NOW Foods Sports Nutrition, L-Glutamine Pure Powder, Nitrogen Transporter*, Amino Acid, 1-Pound
7.7

Now Foods

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  • NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics.
  • NITROGEN TRANSPORTER*: Pure Glutamine Powder helps to maintain a positive nitrogen balance, aids in offsetting some of the stress from physical exertion, and helps to regulate the body's pH to support homeostasis, which is critical for overall fitness*
  • IMMUNE SUPPORT*: Great for pre- and post-workout!
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.

9. Sports Research L-Glutamine - Workout Recovery, Immune Health & Gut Health Support - 5 G Per Serving

Sports Research L-Glutamine - Workout Recovery, Immune Health & Gut Health Support - 5 G Per Serving
7.9

Sports Research

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  • L-GLUTAMINE POWERED BY SPORTS RESEARCH : Amino Acids are crucial in the process of building protein within the body. L-Glutamine is one of the most abundant amino acids in the human bodyhaving enough of it aids in your bodys protein synthesis*
  • WORKOUT RECOVERY, GUT & IMMUNE HEALTH: 1-2 daily scoops of pure L-Glutamine mixed into your favorite beverage, provides you with gut, immune and workout recovery support*
  • ONE DAILY SCOOP: One to two daily scoops of our fermented glutamine powder, mixed into your favorite beverage, provide you with a range of benefits you can see and feelespecially when combined with a regular workout routine*
  • DEDICATED TO QUALITY: Our L-Glutamine is made using a proprietary fermentation process, and a high-quality powder from a premium, trusted name made in the USAentirely vegan, Informed Sport tested for banned substances, gluten-free and non-GMO tested
  • THE SPORTS RESEARCH DIFFERENCE: Founded in Southern California in 1980, Sports Research is a family-owned business born from a passion for fitness and wellness. Our goal is to embrace the sport of life through research-backed products created for every bodyinside and out

10. Pure Encapsulations L-Glutamine Powder - Supplement for Immune and Digestive Support, Gut Health and

Pure Encapsulations L-Glutamine Powder - Supplement for Immune and Digestive Support, Gut Health and
8.9

Pure Encapsulations

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  • Gastrointestinal Health: L-glutamine powder nutritionally supports the mucosal lining and healthy functioning of the gastrointestinal tract*
  • Supports Lean Muscle: This L-glutamine supplement also helps support and preserve lean muscle mass, especially in times of metabolic stress*
  • Amino Acid: L-glutamine is the most abundant amino acid in the body; glutamine is utilized by the body for tissue repair and gastrointestinal tract support*
  • Pure Quality: Our supplements are made with premium ingredients sourced from trusted suppliers and guided by nutritional experts, then carefully manufactured and tested to verify potency and purity
  • Pure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients, and GMOs

Peter

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