From the Manufacturer:
"L-Arginine has several roles in the human body. TO summarize, here are some of the few conditions reported to respond to L-Arginine therapy- Angina Pectoris, Atherosclerosis, coronary artery disease, hypercholesterolemia, hypertension, nephrosclerosis, associated with diabetes mellitus, sterility associated with oligospermia.
Body builders are especially benefited by L-Arginine, because of its effect on growth hormone levels. Research has shown that consumption of 1 to 2 grams of L-Arginine daily, with weight training, a greater decrease in body fat was obtained after only five weeks. L-Arginine is also a necessary amino acid to increase protein synthesis, which in turn promotes the cellular replication. Thus, Arginine helps people with inadequate numbers of certain cells. It is noteworthy that studies have found that men with low sperm counts experienced an increase in the number of sperms when they supplements with L-Arginine."