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Metabolic Nutrition L-Glutamine, Unflavored supplement bottle
Metabolic Nutrition

L-Glutamine, Unflavored Review

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · Page generated: Sep 2026
100
Product Score Excellent
63
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Glutamine 5 g **
Bioavailability Excellent

Absorption Rating

  • L-Glutamine Good
Other Ingredients Excellent

Fillers & Additives

  • Silicone Dioxide
Efficacy Excellent

Dosage Analysis

  • L-Glutamine 5 g Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Glutamine 5 g **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Silicone Dioxide Generally_safe

It is used as a flow agent to prevent clumping and improve powder flow.

Brand Trust Report
Metabolic Nutrition

Founded 1987 · Tamarac, Florida, United States · 151 products · metabolicnutrition.com/

Transparency

3 claims
In House Testing — Verified Evidence available Evidence
Third Party Testing Claim — True Brand claim; evidence unavailable

Violation History

1 incident
Fda Warning Products Synedrex and E.S.P. Extreme were found to contain 2-aminoisoheptane (DMHA), an ingredient that the FDA considers to be a new dietary ingredient for which a New Dietary Ingredient notification is required and has not been submitted. The FDA stated that in the absence of such a notification, the products were considered adulterated.2019-04-10 Source available Primary source
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Frequently Asked Questions
Is Metabolic Nutrition L-Glutamine, Unflavored a good supplement?

Metabolic Nutrition L-Glutamine, Unflavored received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 60 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Metabolic Nutrition, holds a brand trust score of 63/100.

What are the ingredients in Metabolic Nutrition L-Glutamine, Unflavored?

Metabolic Nutrition L-Glutamine, Unflavored contains 1 active ingredients: L-Glutamine (5 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Metabolic Nutrition L-Glutamine, Unflavored safe to take?

GoodSupp reviewed the inactive-ingredient data available for Metabolic Nutrition L-Glutamine, Unflavored. All 1 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Metabolic Nutrition a trustworthy supplement brand?

Metabolic Nutrition receives a brand trust score of 63/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1987 and headquartered in Tamarac, Florida, United States, the company offers 151 products in their lineup. Note: Metabolic Nutrition has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.