Nitric Oxide supplements, commonly abbreviated as “NO”, are geared towards accelerated muscle growth and prolonged stamina during endurance activities.
Nitric Oxide has been determined to control the circulation of blood and may actually increase blood flow. It also sends signals between nerve cells, and can function to deliver more nutrients to muscle cells, therefore, helping the muscles to increase in size when you workout.
Considered an antianginal product because it causes vasodilation (the widening of blood vessels), Nitric Oxide can help with ischemic pain (known as angina) by decreasing the cardiac workload.
More specifically, Nitric Oxide acts in the circulatory system, blood vessels and capillaries, causing them to ‘relax’ and, as they relax, they open up, allowing more blood to flow. By dilating the veins, Nitric Oxide lowers arterial pressure and left ventricular filling pressure. This vasodilation does not decrease the volume of blood the heart pumps but rather it decreases the force the heart muscle must exert to pump the same volume of blood.
In addition, Nitric Oxide is not just an important neurotransmitter, but is in fact the most widespread signaling molecule in the body, helping to control a range of processes in the body, including nerve and immune function, and tissue formation. When NO was first discovered to be the neurotransmitter to erectile tissue, it spawned the development of Viagra and other similar drugs and supplements.