L-Arginine

L-Arginine is an amino acid, essential to the metabolism of ammonia that is generated from protein breakdown. It is also needed to transport the nitrogen used in muscle metabolism.

Body-building: Arginine is one of the body-building amino acids and also influences several hormone functions. L-arginine has been shown to stimulate the pituitary gland to produce and secrete human growth hormone in young males, at a dose of more than 3 grams daily. Human growth hormone helps in muscle building, leading to increased muscle strength and tone, and enhances fat metabolism (increases the burning of fats), which may help with weight loss.

High Blood Pressure L-arginine allows blood vessels to dilate, thus leading to reduced blood pressure. In one controlled trial, people not responding to conventional medication for their hypertension were found to respond to a combination of conventional medication and oral arginine (2 grams taken three times per day.)

Immunity: L-arginine has a positive effect on the immune system, mainly by stimulating thymus activity. L-Arginine also helps the body heal from wounds, possibly as an aid to collagen formation.

Sexual Function:L-Arginine is a precursor to Nitric Oxide (NO) which promotes circulation, resulting in improved blood flow to the penis. In addition to improved erectile function, studies with L-Arginine report an increase in sexual satisfaction in men and improved sexual desire and satisfaction in women
L-arginine supplementation, at a dosage of 4 grams daily, has been successful in improving fertility in men by increasing low sperm count and motility.

Caution: During outbreaks of cold sores and genital herpes, arginine foods and supplements must be avoided. Instead supplement with L-Lysine