AAKG or Arginine alpha-ketoglutarate is a nonessential amino acid that's necessary for producing nitric oxide. Increased levels of nitric oxide in blood vessels increases blood flow, allowing the muscles and tissues to receive larger amounts of carbohydrates, proteins, and hormones, which helps to amplify the beneficial muscle-bilding effects of exercising. L-Arginine in AAKG stimulates protein synthesis, which helps the body build muscle mass, leading to increase strength and endurance. Supplementing with AAKG may help to improve peak athletic performance because it helps the liver break down by-products of muscle exercise such as ammonia.