What Is L-Glutamine? A Plain-English Guide

What Is L-Glutamine? A Plain-English Guide
Guide2 min readMAYN Guides

Quick answer

L-glutamine is the most abundant free amino acid in the human body. It's classed as conditionally essential: the body normally makes enough, but needs can change. It's found in protein foods such as meat, fish, eggs and dairy, and in MAYN Glutathione Gummies alongside glutathione, magnesium and zinc.

Type

Conditionally essential amino acid

Claim to fame

Most abundant free amino acid in the body

Food sources

Meat, fish, eggs, dairy, tofu

Not to confuse with

Glutamate or glutathione

Glutamine vs glutamate vs glutathione

Name What it is
L-glutamine An amino acid
Glutamate (glutamic acid) A related amino acid, also found in MSG
Glutathione A tripeptide of glutamate, cysteine and glycine

The similar names cause a lot of confusion. Glutathione is a separate molecule; read NAC vs Glutathione.

Where is glutamine found?

  • Beef, chicken and fish
  • Eggs and dairy
  • Tofu and soy
  • Cabbage, beans and spinach (smaller amounts)
MAYN Glutathione Gummies with L-Glutamine, Magnesium & Zinc

Featured in this guide

MAYN Glutathione Gummies with L-Glutamine, Magnesium & Zinc

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Glutamine in supplements

L-glutamine is sold as a powder and appears in blends. MAYN Glutathione Gummies combine glutathione with L-glutamine, magnesium and zinc. See What's in MAYN Glutathione Gummies?

Tip: Check the label for the milligrams of each ingredient per serve.

Frequently asked questions

Is glutamine the same as glutamate?

No. They're closely related amino acids, but they're different compounds.

Is glutamine essential?

It's considered conditionally essential: the body usually makes enough, but needs can vary.

Does glutamine contain MSG?

No. MSG is monosodium glutamate, a salt of glutamate, not glutamine.

Keep reading

This article is general information only and is not medical advice. Always read the label and follow the directions for use. Dietary supplements should not replace a balanced diet. If you are pregnant, breastfeeding, taking medication or have a medical condition, speak with your doctor or pharmacist before taking a new supplement.