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Evaluation of Amino Acid Consumption in Cultured Bone Cells and Isolated Bone Shafts

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Glutamine: the nonessential amino acid for performance enhancement.

George C Phillips¹

¹University of Iowa Children's Hospital, Iowa City, IA 52242, USA. george-phillips@uiowa.edu

Current Sports Medicine Reports

|July 10, 2007

Summary

Glutamine supplementation is popular for exercise benefits like strength and recovery. However, scientific evidence does not definitively support these ergogenic claims for athletes.

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Area of Science:

Sports nutrition
Exercise physiology
Biochemistry

Background:

Glutamine is a popular dietary supplement for athletes.
It is purported to enhance strength, recovery, and immune function.
Glutamine plays a physiological role in these areas.

Purpose of the Study:

To review the effects of glutamine supplementation on exercise performance.
To evaluate the scientific evidence for ergogenic benefits.

Main Methods:

Literature review of studies on glutamine and exercise.
Analysis of biochemical and physiological roles of glutamine.

Main Results:

Evidence for definitive positive ergogenic benefits from glutamine supplementation is lacking.
Glutamine is one of many factors influencing exercise outcomes.

Conclusions:

Current evidence does not support glutamine supplementation for significant ergogenic benefits.
Further research may be needed to clarify its role in specific contexts.