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L Glutamine Supplements

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ATP Science L-Glutamine
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$39.95 - $69.95
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AST GL3 L-Glutamine
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BSc Glutamine Powder
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BSN Glutamine DNA
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EHP Labs Glutamine
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Maxs Lab Series Glutamine
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Optimum Nutrition Glutamine Powder
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Scivation Xtend Elite BCAAs
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About L Glutamine Supplements

Glutamine is termed a conditionally essential amino acid due to the fact that some is synthesized, though under certain conditions we can not produce enough to meet our needs. During exercise, muscle glutamine levels decline. For this reason it is believed that supplementation can enhance exercise recovery and adaptation. Muscle tissue naturally contains an abundance of this amino acid.


L-Glutamine powder may be particularly useful when engaging in high-volume training and during the colder months of the year to support the immune system. Other nutrients to support this role would be zinc and vitamin C, to name a few. Glutamine is required for synthesis of the most powerful antioxidant that the body synthesizes, called glutathione. Glutathione helps to neutralise free-radicals, which happens at much higher rates during aerobic exercise as a normal part of oxygen-dependent energy pathways. It was reported in Medical Science Monitor in 2002 that 3-10% of oxygen utilised by tissues is converted to free-radicals. Glutamine can therefore support antioxidant status. 


Glutamine is an important energy source for intestinal cells. Evidence suggests that it is needed for intestinal cell proliferation and helps to regulate normal absorption of nutrients. This was published in the International Journal of Molecular Sciences in 2017. L- Glutamine is a very intestine-specific amino acid, especially indicated for intestinal or gastric ulcerations and inflammation.


Research indicates that a glutamine supplement can boost glycogen accumulation, which is particularly important for endurance athletes or people involved in high volume training. Furthermore, research is indicating that glutamine may increase peak torque and decrease muscle soreness. Glutamine is relatively tasteless when mixed in water and for this reason is most commonly sold unflavoured and unsweetened. Alternatively, it can be mixed into protein shakes and taken after training or before food to support GUT health.