Arginine enhances immune functions, effectively retarding the growth of tumors and cancer. Also controls the size and activity of the thymus gland (gland that creates T lympocytes, also known as T cells. Because of this arginine can be useful for those suffering from AIDS as well as other diseases that act to suppress the immune system. It is known that arginine aids the liver by neutralizing ammonia which makes it good for those with liver disorders such as cirrhosis of the liver and chronic alcohol toxicity.
Arginine may play an important role in sexual maturity, with studies suggesting that it may be delayed by an arginine deficiency. It is also effective in treating sterility in men.
It is also important in muscle metabolism, arginine helps maintain a proper nitrogen balance by acting as a source for the nitrogen to be stored and transported. Which was reinforced by studies that have shown arginine reducing nitrogen losses in people who have undergone surgery. Body builders regularly take arginine because it aids in the reduction of body fat and an increase in muscle mass. Also because it stimulates the pancreas in order to increase insulin release.
Arginine in Collagen:
Arginine is a component of collagen which aids in building new bone, creating scar tissue, and tendon cells.
Those who should avoid taking arginine supplements:
Pregnant/Lactating women should avoid L-arginine
Those afflicted with schizophrenia need to avoid doses larger than 30mg/day
Patients with viral infections.
Long term dosing of Arginine is not recommended as it may lead to coarsening and thickening of the skin.