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L Glutamine Comparison - July 2025

1
Best Choice
9.7Exceptional
2
9.6Exceptional
3
Best Value
9.4Excellent
4
9.1Excellent
5
9.0Excellent
6
8.9Very Good
7
8.6Very Good
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Model

NOW Foods Supplements, L-Glutamine 500 mg, Nitrogen Transporter*, Amino Acid, 120 Veg Capsules
Model
Pure Encapsulations L-Glutamine 500 mg - Supplement for Immune and Digestive Support, Gut Health and Lining, Metabolism, and Muscle Support* - with Free-Form L-Glutamine - 90 Capsules
Model
Nutricost L-Glutamine Powder 1 KG - Unflavored, Non-GMO, Gluten Free
Model
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)
Model
Nutricost L-Glutamine Powder (500 Grams) Unflavored - Gluten Free & Non-GMO, 100 Servings
Model
Nutricost L-Glutamine 800mg, 180 Capsules - Gluten Free, Non-GMO
Model
THORNE L-Glutamine - Amino Acid Supplement for GI Health and Immune Function* - 90 Capsules

Brand

NOW Foods
Brand
Pure Encapsulations
Brand
Nutricost
Brand
BulkSupplements
Brand
Nutricost
Brand
Nutricost
Brand
THORNE

Reviews

34,521 reviews
Reviews
5,778 reviews
Reviews
14,484 reviews
Reviews
25,842 reviews
Reviews
36,885 reviews
Reviews
11,163 reviews
Reviews
4,074 reviews

Features

Simple to consume

9.6
Simple to consume
9.4
Simple to consume
9.3
Simple to consume
9.1
Simple to consume
9.1
Simple to consume
9.1
Simple to consume
9.3

Flavor

9.3
Flavor
8.6
Flavor
8.6
Flavor
8.4
Flavor
8.1
Flavor
8.9
Flavor
9.1

Worth the money

9.3
Worth the money
9.3
Worth the money
9.1
Worth the money
9.1
Worth the money
8.9
Worth the money
9.1
Worth the money
7.9

Tech Specs

product dimensions

2.5 x 2.5 x 4.44 inches 4.23 ounces
product dimensions
3.1 x 1.8 x 1.1 inches 0.02 ounces
product dimensions
5 x 5 x 7.2 inches 2.52 Pounds
product dimensions
1 x 10.4 x 6.7 inches 1.1 Pounds
product dimensions
4.49 x 4.09 x 5.31 inches 1.28 Pounds
product dimensions
-
product dimensions
2.09 x 2.09 x 3.72 inches 0.02 ounces

Review

Review
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Review
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Review
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Review
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Review Review
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Available On

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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    NOW Foods
    39% Off

    NOW Foods Supplements, L-Glutamine 500 mg, Nitrogen Transporter*, Amino Acid, 120 Veg Capsules

    9.6 simple to consume
    9.3 Flavor
    9.3 worth the money

    Why we love it

    Essential amino acid: Help recovery
    Nitrogen transporter: Maintain balance
    Certified: Halal, non GMO, etc.
  • 9.6
    2
    Pure Encapsulations

    Pure Encapsulations L-Glutamine 500 mg - Supplement for Immune and Digestive Support, Gut Health and Lining, Metabolism, and Muscle Support* - with Free-Form L-Glutamine - 90 Capsules

    9.4 simple to consume
    9.3 worth the money
    8.6 Flavor

    Why we love it

    Improves gastrointestinal health and reduces IBS symptoms.
    Supports lean muscle mass during metabolic stress.
    Made from premium, allergen-free, non-GMO ingredients.
  • 9.4
    3
    Nutricost
    41% Off

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

    9.3 simple to consume
    9.1 worth the money
    8.6 Flavor

    Why we love it

    High-quality, pure L-Glutamine.
    Supports muscle recovery effectively.
    Non-GMO and gluten-free.

Our ranking system

At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.

Features

Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
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Consumer Reviews

We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
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Popularity

Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
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Value for money

AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
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