SiN2.0 Sex Information Network

As it turns out, Watermelon contains citrulline, a chemical that causes relaxation of the blood vessels, which is similar to what Viagra does in order to help a man achieve and maintain an erection. Enzymes in the body convert this citrulline into arginine, an amino acid with circulatory and immune benefits, and though it may not be organ specific, as Viagra is, it can help treat erectile dysfunction for those who don’t want to spend $5 a pop for the little blue pill.