Blog Details

Best L-Glutamine Supplements of 2019

Best L-Glutamine Supplements

Bodybuilders rely on L-glutamine supplements to boost their performance during a workout. It also aids them to attain faster muscle recovery.

If you’re looking for the best L-glutamine supplement in the market, you have come to the right place. Read on to know which ranks as the best L-glutamine supplements of 2019.


L-glutamine is an essential amino acid that plays a crucial role in the production of protein in your body, as well as in weight loss and muscle building.


L-glutamine is one of the most popular supplements for bodybuilding because it provides many health benefits. However, it is important that you know the possible side effects that it carries.


  • Increase athletic performance
  • Speeds up muscle recovery
  • Aids in weight loss
  • Treats inflammatory bowel disease
  • Assists cancer patients
  • Prevents upper respiratory tract infections
  • Boosts immune system
  • Reduces stress and infections


  • L-glutamine supplements are generally safe, yet, you must take precautions when you have cirrhosis, severe liver disease, monosodium glutamate (MSG) sensitivity, and seizures.


1. Evlution Nutrition

Each canister has 60 servings, with five grams of ultra pure L-glutamine per serving. It is said to play a variety of functions for better performance.


  • Contains ultra-pure, pharmaceutical grade L-glutamine
  • Aids in faster workout recovery
  • Gluten-Free, Vegan, and proudly made in the USA
  • Offers a 30-day satisfaction guarantee


  • Unflavored
  • Does not dissolve well

Reviews of this product on Amazon are mostly positive. Users can feel an increase in their performance after taking this product. In addition, it comes at an affordable price and offers a money-back guarantee.

2. Pure Encapsulations

Manufactured by Pure Encapsulation, this supplement offers a convenient source of amino acids. Each capsule contains L-glutamine in its free form. Additionally, it contains Vitamin C for extra immunity.


  • Pure ingredients used
  • Free from gluten, wheat, peanuts, egg, hydrogenated fat, magnesium stearate, artificial sweeteners and colors, and other unnecessary excipients
  • Supports lean muscle


  • Some users experienced negative reactions, such as tension and anxiety.

Most of the reviews of this product on Amazon are positive. Users love how it is helpful in their gut issues. Moreover, it is also stated that it is effective in muscle gain. On the contrary, a few users reported having experienced side effects.

3. Nutricost L-Glutamine

L-Glutamine Powder by Nutricost offers 100% of pure L-glutamine. This high-quality supplement is perfect for those who are looking for a boost in muscle recovery, immune system, and digestive health.


  • Clean and pure powder
  • Most abundant Amino Acid in Muscle Tissue
  • 1.1 pounds (500 grams) for 100 servings with 5000mg per serving
  • Made in the USA
  • Aids with acid reflux


  • Has chalky texture

This product has received mixed reviews on Amazon, though most of them are positive. Users find it effective in muscle building and recovery. On the other hand, some users don’t like the chalky texture.

4. MuscleTech Glutamine Powder

This product reportedly offers a better value than its competitors. This is due to the reason that it is packed with 5 grams of HLPC-tested L-glutamine powder per serving.


  • Supports increased glycogen replenishment, protein synthesis, and cell volume
  • Dissolves instantly 
  • Non-stimulant formula that can be taken anytime


  • Flavorless

Reviews for this product on Amazon are overwhelmingly positive. For a good price, users feel that it delivers exactly what it advertises. 

5. Jarrow Formulas L-Glutamine Powder

You get 100% L-Glutamine on this product as it stated that it contains no other substances. It’s a true testament on the manufacturer’s reputation of featuring products with pure value and quality standard potency.


  • Supports immune function
  • Pure glutamine
  • No wheat, no dairy, no gluten, no egg, no soybeans, no peanuts and tree nuts, no fish and shellfish


  • Flavorless
  • Some users experienced digestive problems

This product has received mixed reviews on Amazon, though the majority of it is still positive. Users like how it aids them in better gym performance. On the contrary, other users experienced side effects, including digestive issues. Some users don’t find it helpful in their gut problems as well.

6. Kaged Muscle L-Glutamine Powder

Each serving contains 5 grams of fermented glutamine to help replenish glutamine levels after an intensive workout. Unlike other glutamine supplements, this product is fermented, making it easier for digestion and absorption.



  • Flavorless

Reviews for this product on Amazon are generally positive. Users reportedly love the pureness of this supplement. It is said to deliver great and favorable results after several usages.

7. Body Fortress 100% Pure Glutamine Powder

This glutamine powder is currently ranked as one of the highest products of Body Fortress. It’s also noted as one of the purest glutamine supplements available on the market. 


  • No artificial colors and flavors
  • No GMOs
  • Aids in recovery from workouts
  • Can be used before and after workout


  • Has an unpleasant smell
  • Does not dissolve easily

This supplement has received mixed reviews on Amazon. Users like how they use it pre- or post-workout to help boost their performance and speed up muscle recovery. On the other hand, some users found the taste unpleasant.

8. BulkSupplements L-Glutamine Powder

The BulkSupplements powder is one of the top-ranked L-glutamine supplements when it comes to the purity and safety of its ingredients. It contains pure L-glutamine that has been lab-tested to guarantee purity.


  • Prevents muscle loss and promotes muscle growth 
  • Non-GMO
  • Pure L-Glutamine
  • Product has been lab-tested


  • Flavorless

This supplement has received mostly positive reviews on Amazon. It offers good quality at an affordable price. Users also like how it can easily be mixed with their favorite shakes or smoothies.

9. NOW Sports L-Glutamine Powder

NOW L-Glutamine Powder offers the highest grade of non-essential amino acid. It states that it is pure and free-form, giving consumers the best value for their money.


  • Non-GMO and ideal for vegan/vegetarian
  • Uses natural ingredients
  • Product has been tested to ensure great quality


  • Has chalky texture

This product has received mixed reviews on Amazon, though most of the reviews are predominantly positive. Users love how they can easily dissolve it when mixed with their favorite drinks. They also see great results after use. On the other hand, some don’t like the chalky texture.

10. Optimum Nutrition Glutamine Powder

This potent glutamine supplement aids in muscle recovery. It is packed with five grams of pure glutamine per serving.


  • GMP certified
  • Five grams of pure glutamine per serving
  • Comes in four sizes to choose from


  • Can be a bit pricey
  • Taste may be unpleasant

This supplement has received mixed reviews on Amazon. Positive review states that it’s a great product to boost gym performance and workout recovery. However, other users gave this supplement a negative review because of its unpleasant taste.


Each of the supplements on this list has earned their reputation as one of the best L-glutamine supplements offered in the market. 

However, the one supplement that grabbed the top rank is the L-glutamine powder from NOW Sports. Our top pick was based on the ingredients used, manufacturer’s credibility, as well as reviews made by the users.

If you’re looking for an affordable product, yet delivers great quality, this supplement may be perfect for you. It uses pure and natural ingredients. Additionally, it has been tested to ensure its quality.


Best Glutamine Supplements – Top 10 Brands Reviewed for 2019. (n.d.). Retrieved from 

Best Glutamine Supplements Reviewed & Rated for Quality. (n.d.). Retrieved from 

Top 10 Glutamine. (n.d.). Retrieved from 

10 Best L-Glutamine Supplements. (n.d.). Retrieved from 

Leave A Comment