L-arginine is an amino acid. It’s used in protein production in the body. It plays a crucial role in cleaning the body of ammonia and insulin. There are several other health benefits of this amino acid. L-arginine is commonly sold in supplement form. Plants, dairy products, and animal proteins are its natural sources. This blog introduces you to three benefits of l-arginine supplements for which there is sound scientific evidence:

L-arginine Health Benefits

  • Angina

L’arginine pills improve the function of blood vessels, increase tolerance to workout, and alleviates the symptoms of angina—and this has been proven by several studies.

  • Erectile Dysfunction

A 1999 study divided 50 men into two groups. Group one received five grams of l-arginine everyday. Group two was given a placebo. After six weeks researchers discovered that men who took l-arginine showed an improvement.

L-arginine stimulates nitric oxide, which in turn relaxes the blood vessels leading to the penis—just like Viagra. More blood flow into the penis helps men maintain an erection for longer. However, unlike Viagra, l-arginine offers an advantage: it can be used everyday without any fear of side effects because it’s a natural treatment.

  • Congestive Heart Failure

A 2000 study published in Clinical Cardiology suggests that l-arginine improves cardiac performance in people diagnosed with a cardiovascular disease; such as congestive heart failure. It must be noted here that the National Institutes of Health (NIH) recommends against the use of l-arginine in lieu of more standard treatments. It can be used as a supplement, but it can’t replace traditional medication—at least not yet.

Other Benefits of l-arginine

L-arginine can also be used to treat:

  • high blood pressure
  • dementia
  • migraine
  • sexual dysfunction in women



Milk, butter, and other dairy products, meat, and green vegetables are rich sources of l-arginine. L-arginine pills are man made source of this amino acid.