9 Best glutamine powders of 2025

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Best Choice

1

THORNE
THORNE - L-Glutamine Powder - Glutamine Powder for GI Health and Immune Function* - 17.8 Oz
Main highlights

Supports Muscle Recovery and Wound Healing
Thorne's supplement aids muscle recovery post-exercise or injury, promotes GI and nerve health, supports wound and burn healing, and is free from major allergens.

Ideal for Gut Health and Immune Support
Best used for improving gut health, managing leaky gut, enhancing immune function, and aiding in overall recovery from various health conditions.

Praised for Easing Bloating and Improving Digestion
Customers frequently praise the product for reducing bloating, improving regularity, and supporting overall gut health, making it a highly recommended supplement.
Key specs
- benefits:Supports muscle recovery
- usage:Promotes GI and nerve health
- gluten free:Yes
- form:N/A
- non-gmo:N/A
9.7

Exceptional

Our Rating

9.9
quality of ingredients

9.7
worth the money

8.0
Flavor
How do we rank?

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Value for Money

2

Optimum Nutrition

Optimum Nutrition L-Glutamine Muscle Recovery Powder, 1000 Gram, 194 Servings (Pack of 1)
9.6

Exceptional

Our Rating
3

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

High Potency Formula
Provides 5000mg of L-Glutamine per serving, ensuring optimal support for muscle recovery and gut health.

Versatile Use Cases
Ideal for athletes, fitness enthusiasts, and individuals seeking muscle recovery and digestive support.

Quality Manufacturing
Praised for being manufactured in a GMP compliant, FDA registered facility, ensuring safety and quality.
Key specs
- benefits:N/A
- usage:N/A
- Discontinued:No
- Date First Available:January 20, 2015
- Manufacturer:Nutricost
9.5

Excellent

Our Rating
4

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

41% Off
Main highlights

High-Purity and Tested
1KG of L-Glutamine, 200 servings, third-party tested, non-GMO, gluten-free.

Ideal for Athletes and Recovery
Perfect for muscle recovery, immune support, and gut health post-workout.

Customer Praised Quality
Users love the purity and effectiveness for muscle recovery and performance.
9.3

Excellent

Our Rating
5

MuscleTech
Muscletech 100% L-Glutamine Powder for Enhanced Muscle Recovery - Pure L Glutamine Muscle Growth Builder & Energy Boosting Nutritional Supplement for Men & Women - Unflavored, 60 Servings
Main highlights

Rapid Glutamine Replenishment
Supplies 5g of l-glutamine per serving for quick recovery.

Ideal for Intense Training
Perfect for men and women post-workout recovery.

Tasteless and Easy Mixing
Praised for zero taste and effortless blending.
Key specs
- benefits:Replenish glutamine, muscle support
- usage:Mixes easily, day or night
- gluten free:N/A
- form:Powder
- non-gmo:N/A
9.1

Excellent

Our Rating

9.5
simple to consume

9.3
worth the money

9.1
Flavor
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6

Pure Encapsulations
Pure Encapsulations L-Glutamine Powder - Supplement for Immune and Digestive Support, Gut Health and Lining, Metabolism, and Muscle Support* - with Pure Free-Form L-Glutamine - 8 Ounces
Main highlights

Supports Gastrointestinal Health and Lean Muscle
L-glutamine powder supports the mucosal lining and healthy GI tract function, preserves lean muscle mass, and aids in tissue repair with pure quality ingredients.

Ideal for Digestive Issues and Athletic Performance
Best used for improving GI tract health, easing IBS symptoms, and enhancing athletic performance, especially during times of metabolic stress.

Praised for Tastelessness and Easy Dissolution
Customers appreciate that the L-glutamine powder is tasteless, odorless, and dissolves quickly in liquids, making it easy to incorporate into daily routines.
Key specs
- benefits:Supports GI health, lean muscle
- usage:Tissue repair, GI support
- gluten free:Yes
- form:Powder
- non-gmo:Yes
8.9

Very Good

Our Rating

9.9
quality of ingredients

9.9
Flavor

8.0
worth the money
7

BulkSupplements

BulkSupplements.com L-Glutamine Powder - Glutamine Supplement, for Recovery & Gut Health - Unflavored & Gluten Free, 5g (5000mg) per Serving, 500g (1.1 lbs) (Pack of 1)
8.6

Very Good

Our Rating
8

NOW Foods

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

13% Off
8.5

Good

Our Rating
9

Double Wood Supplements

L Glutamine Powder 1.1lbs (100 Servings of 5 Grams Each - Third Party Tested L-Glutamine Powder) Unflavored, Keto, Vegan Friendly (with Scoop) for Exercise Endurance and Gut Health by Double Wood
8.3

Good

Our Rating

9 Best glutamine powders of 2025

1

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

9.9

9.7

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

Optimum Nutrition L-Glutamine Muscle Recovery Powder, 1000 Gram, 194 Servings (Pack of 1)

3

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

4

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

5

Muscletech 100% L-Glutamine Powder for Enhanced Muscle Recovery - Pure L Glutamine Muscle Growth Builder & Energy Boosting Nutritional Supplement for Men & Women - Unflavored, 60 Servings

9.5

9.3

9.1

6

Pure Encapsulations L-Glutamine Powder - Supplement for Immune and Digestive Support, Gut Health and Lining, Metabolism, and Muscle Support* - with Pure Free-Form L-Glutamine - 8 Ounces

9.9

9.9

8.0

7

BulkSupplements.com L-Glutamine Powder - Glutamine Supplement, for Recovery & Gut Health - Unflavored & Gluten Free, 5g (5000mg) per Serving, 500g (1.1 lbs) (Pack of 1)

8

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

9

L Glutamine Powder 1.1lbs (100 Servings of 5 Grams Each - Third Party Tested L-Glutamine Powder) Unflavored, Keto, Vegan Friendly (with Scoop) for Exercise Endurance and Gut Health by Double Wood

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