Glutamine
A conditionally essential amino acid supplement supporting gut, immune, and muscle recovery, commonly used by athletes and in clinical care.
Glutamine is the most abundant free amino acid in human plasma and muscle tissue. It is naturally synthesized in the body and found in high-protein foods. During critical illness, intense exercise, or metabolic stress, glutamine demand can exceed supply, making supplementation beneficial in select cases.
Strong biological rationale and modest clinical evidence for gut and immune benefits, with limited support for sports recovery in healthy individuals.
Supports gut health and intestinal barrier function
ModerateGlutamine provides fuel for intestinal cells, helping to maintain and repair gut lining, reducing intestinal permeability in conditions such as critical illness and gastrointestinal disorders.
May improve immune function during physical or metabolic stress
ModerateSupplementation can prevent immune suppression in critically ill patients and those under extreme stress, potentially reducing infection rates.
May reduce muscle soreness and aid recovery post-exercise
LimitedGlutamine may help replenish muscle amino acid stores and slightly reduce muscle soreness after intensive exercise; however, benefits in muscle gain or strength are modest in healthy adults.
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