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#15 in Amino Acids Third-Party Tested

Nutricost L-Glutamine Powder

by Nutricost

"200 servings of pure L-glutamine — 5g per serving for gut health, immune support, and muscle recovery"

Amazon Rating
4.6/5
Reviews
10,000+
Price Range
$18-24
Servings
200 servings
GMP CertifiedThird-Party TestedNon-GMO
Our Editorial Rating
7.8
Good
FormPowder
CategoryAmino Acids
SubcategoryL-Glutamine Powder
View on Amazon

Overview

Nutricost L-Glutamine Powder provides 5g of pure L-glutamine per serving with 200 servings per container — making it one of the best value glutamine supplements available. L-glutamine is the most abundant amino acid in the body and is the primary fuel source for intestinal epithelial cells (enterocytes) and immune cells (lymphocytes). During intense exercise, illness, or stress, glutamine demand can exceed supply, leading to gut permeability ('leaky gut') and immune suppression. Supplementation at 5-10g daily supports gut barrier integrity, immune function, and muscle recovery.

Key Ingredients

IngredientAmount
L-Glutamine5000 mg

Pros & Cons

What We Like

  • 200 servings (exceptional value)
  • 5g clinical dose per serving
  • Pure unflavored powder
  • Gut health and immune support
  • 10,000+ Amazon reviews

What Could Be Better

  • Unflavored (bland taste)
  • Powder format only
  • Effects are subtle
  • Some research questions supplementation benefit

Who Is This For?

Best For

  • Gut health and barrier integrity
  • Immune support during training
  • Post-workout recovery
  • Budget amino acid supplementation

Not Ideal For

  • Those wanting flavored supplements
  • Those wanting capsule format
  • Those expecting dramatic results

Our Verdict

7.8/10 — Good

Nutricost L-Glutamine is the value king of glutamine — 200 servings at 5g per serving for under $24. The gut health and immune benefits are well-supported by research. Mix into any beverage for tasteless supplementation.

Alternatives to Consider

No direct alternatives listed for this product yet.