L-ARGININE AND SEXUAL FUNCTION

Arginine is required for normal spermatogenesis. Over 50 years ago, researchers found that feeding an arginine-deficient diet to adult men for 9 days decreased sperm counts by 90% and increased the percentage of non-motile sperm approximately 10-fold. Oral administration of 500 mg arginine–HCl per day to infertile men for 6–8 weeks markedly increased sperm counts and motility in a majority of patients, and resulted in successful pregnancies.

SEXUAL FUNCTION

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