Thorne Research

L-Glutamine Powder

$67.00

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The Promise

Product Identity & Key Facts Pure L‑Glutamine powder, NSF Certified for Sport®

Unflavored, single‑ingredient L‑glutamine powder formulated for mixing; 90 servings per container.

Active ingredient

L‑Glutamine, 5 g per scoop (one serving).

Form & flavor

Unflavored fine powder designed to mix into water, juice, or beverages.

Purity & testing

NSF Certified for Sport® — third‑party certification for ingredient purity and contaminant testing.

Container count

Servings per container: 90; other ingredients: none listed.

Why It Works

Why This Formula Is Specific Concentration, role, and targeted delivery details

Concrete formulation facts and supported physiologic roles based on the ingredient and dose.

01

Clinical dose per serving

Provides 5 g L‑glutamine per scoop — a quantifiable single‑ingredient dose.

02

Single‑ingredient precision

Contains only L‑glutamine (no fillers or additional actives), enabling exact intake control.

03

Targeted cellular fuel

L‑Glutamine is identified as a primary fuel source for intestinal epithelial cells and rapidly dividing immune cells.

04

Athletic and repair contexts

Formula intended to restore glutamine levels when demand is increased (e.g., intense exercise) to support muscle repair processes described on the label.*

Reviews

Customer Reviews

Your Journey

How to Use, Store, and Consider Clear serving, preparation, and safety pointers

Practical directions, storage, and labeled warnings to follow alongside practitioner advice.

Serving & preparation

Mix per label

Suggested use: Mix 1 scoop (5.6 g; provides 5 g L‑glutamine) with at least 8 ounces of water, juice, or preferred beverage daily or as recommended by your health‑care practitioner.

Format & timing

Powder format

Unflavored powder for flexible timing and pairing with fluids; follow practitioner guidance for timing relative to exercise or meals.

Safety & contraindications

Allergy and pregnancy guidance

ALLERGY WARNING: Contraindicated in individuals with a history of hypersensitivity to any ingredient. If pregnant, consult your health‑care practitioner before use.

Interactions & storage

Known interactions and storage

INTERACTIONS: No known adverse interactions or contraindications at publication date. Store per container instructions and keep out of reach of children.

Product education

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

Thorne’s L-Glutamine Powder provides a pure, highly absorbable 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 unflavored, easily mixed powder is an ideal foundational supplement for athletes, individuals with digestive sensitivities, and anyone seeking to support the body’s natural repair processes. As an NSF Certified for Sport® product, it’s a trusted choice for purity and performance.*

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, making 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 and for preventing unwanted particles from passing into the bloodstream, a concept often referred to as supporting “leaky gut.” This makes it 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, reduces exercise-induced soreness, and supports a healthy immune response. Because immune cells rely on glutamine for fuel, maintaining adequate levels is key to staying healthy, especially during periods of hard training.*

  • Promotes a healthy gastrointestinal lining and gut integrity*
  • Enhances muscle repair and reduces soreness after exercise
  • 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: Mix 1 scoop with at least 8 ounces of water, juice, or preferred beverage daily or as recommended by your health-care practitioner.
Serving Size: One Scoop (5.6 g)
Servings Per Container: 90
Ingredient Amount %DV
L-Glutamine 5 g **
Other ingredients: None
**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.