Some evidence shows that arginine may help improve blood flow in the arteries of the heart. That may improve symptoms of clogged arteries, chest pain or angina, and coronary artery disease. However, there currently is no data on how the long-term use of arginine affects cholesterol or heart health
L-arginine base is a free form of L-arginine, a non-essential amino acid that is a component in many proteins and is a central part of the urea cycle, a process which allows the body to dispose of excess nitrogen. L-arginine supplements provide support for healthy metabolic and immune system function.