Benefits of L-arginine

What is L-Arginine?

l-arginineL-arginine is an amino acid that has numerous functions in the body. It helps the body get rid of ammonia (a waste product), is used to make compounds in the body such creatine, L-glutamate, and L-proline, and can be converted to glucose and glycogen if needed.

L-arginine is used to make the nitric oxide, a compound in the body that relaxes blood vessels. Preliminary studies have found that L-arginine may help with conditions that improve when blood vessels are relaxed (called vasodilation), such as atherosclerosis, erectile dysfunction, and intermittent claudication.

L-arginine is also involved in protein formation. In larger amounts, L-arginine stimulates the release of hormones growth hormone and prolactin.

Why Do People Use L-Arginine?

  • Heart disease

In the body, L-arginine is used to make nitric oxide, which reduces blood vessel stiffness, increases blood flow, and improves blood vessel function.

However, L-arginine should not be used following a heart attack. An study sponsored by the National Institutes of Health examining the use of L-arginine after a heart attack was terminated early after six patients died, a disproportionate number. There were no deaths in the patients who did not receive L-arginine.

The study researchers speculate that L-arginine may aggravate the effects of cardiac shock. The results were published in the Journal of the American Medical Association.

  • Erectile Dysfunction

L-arginine has been used for erectile dysfunction. Like the drug sildenafil citrate (Viagra), L-arginine is thought to enhance the action of nitric oxide, which relaxes muscles surrounding blood vessels supplying the penis. As a result, blood vessels in the penis dilate, increasing blood flow, which helps maintain an erection. The difference in how they work is that Viagra blocks an enzyme called PDE5 which destroys nitric oxide and L-arginine is used to make nitric oxide.

In one study, 50 men with erectile dysfunction took either 5 grams of L-arginine per day or a placebo. After six weeks, more men in the L-arginine group had an improvement compared to those taking the placebo.

Unlike Viagra, L-arginine must be taken daily.

  • Wound healing

L-arginine’s possible activity in wound repair may be due to its role in the formation of L-proline, an important amino acid that is essential for the synthesis of collagen.

  • Other Conditions

L-arginine is also used for high blood pressure, migraines, sexual dysfunction in women, intermittent claudication, and interstitial cystitis.

Sources of L-Arginine

L-arginine is conditionally essential, which means that the body normally has enough. It’s produced in the kidney and to a lesser extent, in the liver.

Food sources of L-arginine include plant and animal proteins, such as dairy products, meat, poultry, fish, and nuts. The ratio of L-arginine to lysine is also important – soy and other plant proteins have more L-arginine than animal sources of protein.

Severe burns, infections, and injuries can deplete the body’s supply of arginine. Under these conditions, L-arginine becomes essential and it is necessary to ensure proper intake to meet the increased demands.

L-arginine is also essential for children with rare genetic disorders that impair the formation of L-arginine.

7 Responses to “Benefits of L-arginine”
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  2. Andrew Pelt says:

    great information very useful thanks will check backfor moregreat articles

  3. synerbiz says:

    Thx Andrew for coming to our blog.

  4. maleok says:

    It was found also that L-arginine amino acid aids to produce nitric oxide – an extremely vital chemical compound for blood vessel dilation and keeping a good sexual health.

    One more origin of bad blood supply of all organs and vasospasm (hypertension) lies in decreasing of CO2 levels in our arteries with the years (carbon dioxide) due to stresses and hypodynamia.

    More about the role of NO and CO2 for cardiovascular system and sexual health read here:

    And you might already know, the Nobel Assembly has awarded the Nobel Prize in Physiology or Medicine for 1998 jointly to Robert F. Furchgott, Louis J. Ignarro and Ferid Murad for their discoveries concerning “nitric oxide as a signalling molecule in the cardiovascular system”.

  5. Mike Stone says:

    The use of steroids have very adverse effects on body organs and the male sexual organ one of the most vulnerable. This occurs because the male member also produces anabolic hormones itself.

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