Its main mechanism of action is boosting nitric oxide (NO) production, which helps promote its many effects. Nitric oxide is basically the muscle cells "signaling molecule." Boosting nitric oxide in muscle tissue can have many anabolic effects, including increased nutrient transport and vasodilation (increased blood flow). Arginine boosts NO by stimulating nitric oxide synthase, the enzyme that makes NO.
Theoretically, Arginine AKG supplement is a glutamine precursor and may have a "glutamine sparing" effect in muscle tissue. This may be a side benefit of using this product, as glutamine (the most abundant amino acid in muscle tissue) can help athletes by boosting immune function, increasing cell volumization, supporting protein synthesis, and aiding in glycogen replenishment.
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