L-Arginine is an amino acid which helps our body oxidize glucose and fat and increase the body’s lean muscle mass. It is responsible for performing many numerous functions in our body. Our body produces L-arginine with the helps of other enzymes, but at a fairly inefficient rate. So patients with a history of cardiovascular dysfunction or any other heart disease are likely to get benefited from L-Arginine supplementation. Supplements of L-arginine prevent platelet aggregation and lowers blood pressure. L-arginine when taken in safe amounts can benefit men having sterility problems. Many body-builders also use it as a supplement because it improves blood circulation and stimulates the release of nitric oxide which in turn dilates the blood vessel. High protein food like nuts, dairy products, meat, seafood and chocolate are rich in L-arginine.