Arginine is used to improve heart and blood vessel conditions including chest pains, high blood pressure, congestive heart failure, and coronary artery disease. It can also be used for helping with recurrent leg pain due to blocked arteries, male infertility and ED, and decreased mental capacity in the elderly.

Arginine is considered an essential amino acid, because the body cannot produce it.  It is found in a variety of food sources including animal products, dairy products, and various plant sources.