L-Ornithine is a non-essential amino acid that is an important intermediate in the urea cycle, functioning along with Arginine to rid the body of amonia, a byproduct of protein metabolism.  Both Ornithine and Arginine are known to support the production of Nitric Oxide (NO).  NO plays a fundamental role in vascular function and blood flow.  Ornithine therefore, not only supports detoxification pathways, but also supports NO production and a healthy cardiovascular system.*