Glutamine is the most highly concentrated amino acid found in the human bloodstream, making up 60% of the amino acid content in our muscles.
Glutamine is produced, stored and released in the muscle accordingly. However, the homeostasis (regulation) of Glutamine is affected and reserves are depleted when catabolic stress ensues in the event of infection or rigorous exercise.
It is used predominantly when our muscles contract to increase both muscle hypertrophy and volume. Increased quantities of Glutamine stop the breakdown of the amino acid Leucine and the release of free-radicals which cause cell damage.
Further evidence indicates Glutamine works against Cortisol, which is released under stress and breaks down muscle tissue, allowing us to maintain a higher level of physical performance.
As an important fuel source, Glutamine also boosts the immune system by balancing acid levels in the Kidneys and aiding the metabolism of nitrogen. The content of Glutamine in muscle and plasma is believed to be key to fighting infection. As Glutamine is depleted, immune cells such as lymphocytes no longer have enough fuel to work efficiently.
Glutamine also serves as an important nutrient for a healthy gut, supporting the intestines.
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