The spice has also been shown to boost levels of testosterone and sperm viability. In one study, men who had lower testosterone and were infertile also had significantly lower selenium levels than the fertile group. Prices of medicines. Additional monitoring. Caffeine for penile health Caffeine has been shown to prevent erectile dysfunction.
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One cup of tart POM Wonderful packs 31 grams of sugar. Research indicates that some specific nutrients—from common vitamins to lesser-known plant extracts—that have demonstrated positive effects on very specific aspects of penile performance. Watermelon is one of the richest natural sources of L-citrulline, an amino acid that can help make your erection harder. Caffeine is to improve blood flow by relaxing penile arteries and muscles, leading to stronger erections.