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Glutamine for Sports & Fitness

Glutamine
Glutamine: Main Image

How Much Is Usually Taken by Athletes?

The amino acid glutamine appears to play a role in several aspects of human physiology that might benefit athletes, including their muscle function and immune system.1 Intense exercise lowers blood levels of glutamine, which can remain persistently low with overtraining.2 Glutamine supplementation raises levels of growth hormone at an intake of 2 grams per day,3 an effect of interest to some athletes because of the role of growth hormone in stimulating muscle growth,4 and glutamine, given intravenously, was found to be more effective than other amino acids at helping replenish muscle glycogen after exercise.5 However, glutamine supplementation (30 mg per 2.2 pounds body weight) has not improved performance of short-term, high-intensity exercise such as weightlifting or sprint cycling by trained athletes,6, 7 and no studies on endurance performance or muscle growth have been conducted. Although the effects of glutamine supplementation on immune function after exercise have been inconsistent,8, 9 double-blind trials giving athletes glutamine (5 grams after intense, prolonged exercise, then again two hours later) reported 81% having no subsequent infection compared with 49% in the placebo group.10

Side Effects

At the time of writing, there were no well-known side effects caused by this supplement.

Interactions with Supplements, Foods, & Other Compounds

At the time of writing, there were no well-known supplement or food interactions with this supplement.

Interactions with Medicines

Certain medicines interact with this supplement.

Types of interactions:beneficial= Beneficialadverse= Adversecheck= Check
dnicon_BeneficialReplenish Depleted Nutrients

none

dnicon_BeneficialReduce Side Effects
dnicon_BeneficialSupport Medicine
dnicon_AvoidReduces Effectiveness

none

dnicon_AvoidPotential Negative Interaction

none

dnicon_CheckExplanation Required

none

Copyright 2014 Aisle7. All rights reserved. Aisle7.com

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.

 
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