Thorne Research

L-Glutamine

$26.00

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The Promise

Product identity and formulation Pure crystalline L‑glutamine in a capsule

Thorne Research L‑Glutamine delivers a single-ingredient, crystalline L‑glutamine in vegetarian capsules, NSF Certified for Sport®.

Ingredient & form

L‑Glutamine (pure crystalline) as the sole active ingredient.

Amount per capsule

Each capsule contains 500 mg L‑Glutamine; serving size = 1 capsule.

Capsule & excipients

Hypromellose (cellulose-derived) capsule shell and silicon dioxide.

Quality assurance

NSF Certified for Sport® for purity and manufacturing standards.

Why It Works

Distinct formulation facts Specific amounts, roles, and safety notes drawn from the label

Key concrete facts to compare and act on.

01

Standardized dose

500 mg L‑Glutamine per capsule enables precise dosing.

02

Fuel for fast‑turnover cells

Label notes L‑glutamine serves as a primary fuel for intestinal lining cells.

03

Support during increased demand*

Used to restore depleted glutamine levels when bodily demand is elevated (e.g., intense exercise or stress).

04

Allergy and interaction info

Contraindicated with hypersensitivity to any ingredient; no known adverse interactions at publication date.

Reviews

Customer Reviews

Your Journey

How to use and safety Clear, label‑based directions and precautions

Practical serving, packaging, and safety details for daily use.

Serving & timing

Suggested use

Take 1 capsule three times daily or as recommended by your health‑care practitioner.

Packaging

Servings per container

90 capsules per container (90 suggested single‑capsule servings).

Pregnancy & practitioner advice

Pregnancy precaution

If pregnant, consult your health‑care practitioner before using this product.

Allergy & contraindication

Allergy warning

Contraindicated in individuals with a history of hypersensitivity to any ingredient.

Product education

L-Glutamine: A Foundational Amino Acid for Gut Health and Muscle Recovery

Thorne’s L-Glutamine provides a pure, crystalline form of the most abundant amino acid in the body. L-Glutamine is a critical building block that plays essential roles in maintaining a healthy gastrointestinal lining, supporting immune function, and promoting muscle repair after intense exercise. This supplement offers a convenient capsule form, making it an ideal foundational choice for athletes, individuals with digestive sensitivities, and anyone seeking to support the body’s natural repair processes.*

How It Works: Fueling the Gut and Muscles

L-Glutamine serves as a primary fuel source for the cells lining the intestines and for rapidly dividing immune cells. This makes it crucial for both digestive and immune health.

Support for a Healthy GI Tract
The cells of the small intestine turn over very quickly and have a high demand for L-Glutamine. By providing a direct fuel source, this amino acid helps maintain the integrity of the gut lining, also known as the mucosal barrier. A healthy barrier is essential for proper nutrient absorption. Therefore, it is foundational for individuals with various GI sensitivities.*

Enhancing Muscle Recovery and Immune Function
During times of intense physical stress, such as strenuous exercise or injury, the body’s demand for glutamine can exceed its ability to produce it. Supplementing with L-Glutamine helps restore depleted levels, which aids in muscle tissue repair. It also supports a healthy immune response because immune cells rely on glutamine for fuel.*

  • Promotes a healthy gastrointestinal lining and gut integrity*
  • Enhances muscle repair and helps restore depleted glutamine levels*
  • Serves as a primary fuel source for immune cells
  • Supports wound healing and tissue repair throughout the body*
  • NSF Certified for Sport®, trusted for purity and safety

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take 1 capsule three times daily or as recommended by your health-care practitioner.
Serving Size: One Capsule
Servings Per Container: 90
Ingredient Amount %DV
L-Glutamine 500 mg **
Other ingredients: Hypromellose (derived from cellulose) capsule, Silicon Dioxide.
**Daily Value (DV) not established.
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
PREGNANCY If pregnant, consult your health-care practitioner before using this product.
INTERACTIONS There are no known adverse interactions or contraindications at publication date.