Nitric Oxide (NO) is a free form gas that is produced in the human body and is used by the body to communicate with other cells. This gas is produced by enzymes in the body by breaking down the amino acid Arginine.
NO causes vasodilation (expansion of the blood vessels), which in turn leads to increased blood flow, increased oxygen transport, and increased delivery of all nutrients to skeletal muscle. An amino acid compound called arginine alpha-ketoglutarate (A-AKG) and arginine-ketoisocaproate (A-KIC) can boost short term Nitric Oxide levels however not all NO supplements use l-arganine.
Users of NO supplements typically experience short term increases in strength, muscle pump and stamina.