Benefits of L-Glutamine for the Brain

brain health
l-glutamine capsulesMost people think of body building when they think of L-Glutamine and while it does enhance muscle growth, some of its greatest benefits are for the brain. L-Glutamine is a non-essential amino acid found in the body that acts as a building block for proteins.

L-Glutamine is commonly used in sports medicine and body building and is also successful in strengthening the immune system. More recently, L-Glutamine has been proven to be highly beneficial to brain health and function. L-Glutamine increases energy, stamina and focus, allowing overall cognitive function to increase.

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Uses and Benefits

L-Glutamine has been tested and found successful in increasing endurance and strengthening the immune system. Studies have shown that L-Glutamine helps fight infection and speeds up recovery for critically-ill patients [2].

Body building experts use L-Glutamine to naturally increase muscle growth. L-Glutamine is often promoted as an alternative to steroids because of its natural, stimulating effects on human growth hormone. Individuals taking the proper amount of L-Glutamine are likely to see an increase in muscle growth.

L-Glutamine also strengthens the brain by increasing neurotransmitters. L-Glutamine is a common ingredient in brain health supplements and has been used as a treatment for ADHD, anxiety and depression.

Those key benefits of L-Glutamine for the brain are:L-Glutamine Chemical Structure

  • Focus
  • Energy
  • Learning

How it Works

L-Glutamine boosts brain function by increasing glutamic acid and gamma-aminobutyric acid, two of the most important neurotransmitters in the brain. By increasing neurotransmission, the brain is able to complete important functions faster and more efficiently [1].

L-Glutamine is also believed to remove metabolic residue in the brain, acting as a detox and improving brain function. The stimulating effects of L-Glutamine help increase energy and attention, making learning and cognitive function easier [1].

Side Effects and Dosage

It is recommended that adults take five to ten grams of L-Glutamine a day to increase brain health and function. Because it is an amino acid, it’s important to make sure L-Glutamine intake is balanced with other amino acids. Maintaining a healthy, well-balanced diet will allow you to gain the most from L-Glutamine supplements.

Side effects of L-Glutamine are rare, but occasionally include upset stomach or nausea. To avoid any symptoms, take L-Glutamine after eating and not on an empty stomach.

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  1. Wischmeyer, P. Clinical applications of L-Glutamine: past, present, and future. Nutrition in Clinical Practice. 18(3). 2003. 377-385.
  2. Miller, AL. Therapeutic considerations of L-glutamine:a review of the literature. Alternative Medicine Review: Journal of Clinical Therapeutic. 4(4). 1999. 239-248.


  1. I’ve definitely seen some major benefits from taking glutamine supplements, they are awesome. Thanks for sharing this!

  2. Glutamine For Brain says

    Glutamine supplements is great when used with protein, it helps to rebuild muscles, build lean muscles and minimizes muscle break down. Glutamine is famous among fitness models.
    Great informative article!

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