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The scientifically proven benefits of L-arginine include:

    Vascular System

  • Precursor for the synthesis of nitric oxide (NO), It offers "cardiovascular" support because the (NO) Nitrogen Oxide relaxes the blood vessels flexibility promotes normal blood pressure and prevents blood vessel damage.
  • Decreases blood pressure. 
  • Increases blood circulation.
  • Reduces risk of blood-clotting.
  • Reduces risk of heart disease.
  • Suppresses Arteriosclerosis
  • Anti-caking properties of Arginine and Glutamine reduce clotting and also the risk of a heart attack and stroke.
  • It helps in the regulation of cholesterol by means of lowering serum and LDL cholesterol levels. 


  • Stimulation of the release of growth hormone, which has anti-aging properties. 
  • Improves reproductive ability.
  • Advances cellular regeneration. 
  • It prevents and reduce the effects of osteoporosis by the positive influence the bone mass. 
  • Maintains bone density by stimulating the production of growth hormone.
  • Promotes deep sleep. 
  • Enhances cognitive ability. 
  • It improves memory, especially the long memory  and can reduce the effects of dementia and Alzheimer's.
  • It improves the communication of messenger cells between nerves and the brain.     


  • Improves immune function and the control of bacterial infections. 
  • Reduces healing time of injuries (particularly bone).
  • Quickens repair time of damaged tissue.
  • It helps to accelerate wound healing and post-operative healing. 
  • Research also shows that is has stimulating effect in the treatment of burns. 


  • It reduces the "cardiovascular" and lung damage caused by the use of tobacco, since the nitrogen oxide levels in smokers are less than half that in non-smokers.
  • It is useful in the treatment of asthma through the opening of the airways for easier breathe and treat lung diseases.


  • It improves the functioning of the kidneys. 
  • Slows down the progression of kidney disease.
  • Slows down kidney failure causes by old age. 


  • Reduces adipose tissue body fat.
  • It stimulates lean muscle mass and maintains bone density by stimulating HGH production, which also leads to a reduction of fat tissue. It can be used because of these properties in weight regulation and strength training.
  • Enhances athletic ability.
  • It is helpful in increasing athletic performance through its ability to  boost the training tolerance,
  • Its beneficial effect on the lungs.
  • Is effect on the  growth hormone level which helps the production of lean muscle tissue.


  • Helps improve insulin sensitivity. 
  • It helps in the treatment and prevention of diabetes  related  complications  resulting from bad circulation.
  • It has also been observed that arginine regulates insulin production by the pancreas.

    Sexual function

  • Improves sperm production and motility. 
  • Increases blood circulation of the sex organs.
  • It is used to improve the functioning of the prostate.

    Stomach ulcers

  • It is used in the treatment of "irritated bowel syndrome" and the prevention of it the development of stomach ulcers - in particular the stress related cases - without affecting the stomach acid production. 
  • The addition of Arginine in the stomach wall is also great for endurance athletes importance to prevent irritation and ulcers. 

Note that L-arginine, despite its scientifically proven health benefits, is not a medicine but rather a concentrated food product.