Glutamine

Healthy subjects performing repeated sprints had increased maximal and minimal power with glutamine plus carbohydrates versus placebo.

Soccer players supplementing with glutamine peptide and carbohydrates showed 21% longer time and 22% greater distance on intermittent treadmill exercise compared to carbohydrates alone, with reduced perceived exertion.

L-alanyl-L-glutamine supplementation in healthy athletes improved high-intensity endurance running performance with no differences in muscle damage or inflammation markers.

Review of studies showing glutamine supplementation increased muscle glycogen two hours post-exercise in healthy subjects, reduced muscle damage markers like CK and LDH, attenuated fatigue markers including ammonia, and improved time to exhaustion and perceived exertion when combined with carbohydrates in athletes.

In 31 healthy adults undergoing six weeks of weight training, glutamine supplementation led to no greater improvements in muscle mass or strength compared to placebo.

L-alanyl-L-glutamine supplementation in healthy athletes improved high-intensity endurance running performance with no differences in muscle damage or inflammation markers.