Amino acids are your body’s elemental units; they stimulate the creation of new proteins‚ which not only form your tissues but can also be used as a fuel source. Each of the 20 amino acids present in your cells serves a different purpose. The amino acid arginine is required for the health of your liver‚ muscles‚ joints‚ and skin. It also strengthens your body’s immune system‚ regulates the amount of sugar and hormones in your bloodstream‚ and promotes fertility in men. In addition‚ this amino acid may play a part in keeping your blood flowing and supporting cardiovascular health.