Arginine Alpha Ketoglutarate (AAKG) is a complex of the amino acid L-arginine and alpha-ketoglutarate, an important intermediate in the Krebs cycle responsible for energy production in cells. This combination is believed to enhance the bioavailability and effectiveness of L-arginine, which is a precursor to nitric oxide (NO). Nitric oxide plays a crucial role in vasodilation, improving blood flow, and nutrient delivery to muscles. Athletes and bodybuilders commonly use AAKG as a supplement to support enhanced exercise performance, muscle pump, and recovery. The increased blood flow facilitated by nitric oxide can lead to better oxygen and nutrient transport to working muscles, potentially aiding in endurance and reducing fatigue. Alpha-ketoglutarate also has a role in amino acid metabolism and energy production, further contributing to its appeal in athletic contexts. Beyond sports performance, L-arginine, and by extension AAKG, may support cardiovascular health by improving endothelial function and maintaining healthy blood pressure levels already within the normal range. It is also involved in immune function and wound healing. The alpha-ketoglutarate component is also known for its role in ammonia detoxification and can contribute to the synthesis of other amino acids.