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Coenzyme Q10 treatment in infertile men with low motility

Conclusion:

The exogenous administration of coenzyme Q10 is effective in improving sperm motility in patients affected by idiopathic asthenozoospermia.  Fertility & Sterility, Volume 91, Issue 5, Pages 1785-1792 (May 2009)

The relaxation/erectile mechanisms of tetrandrine (Chinese herb Fen Fang Ji)

Conclusion: Tetrandrine, the main active ingredient in the Chinese herb Fen Fang Ji (the safe Fang Ji), has shown to relax penis muscles for enhanced blood flow to erectile tissue. It's mode of action is through Ca channel blocking, not nitric oxide pathways (which is the mechanism of viagra).

Effect of Shi Chuang Zi plant-extract (osthole) on erectile tissue

Conclusion: Cnidium Monnieri (Shi Chuang Zi) naturally increases nitric oxide release, which powerfully increases the production of cGMP. Cyclic Guanosine Monophosphate (cGMP) is the key in obtaining and sustaining a powerful erection. cGMP relaxes the muscles around the penis, which makes it possible for the cells in the penis to take in blood, thus allows you to experience a proper erection.

Study: food intake & it's relationship with semen quality

In Fertility & Sterility, March 2009, a study was published that concluded, "frequent intake of foods like milk may negatively affect semen quality in humans, whereas  fruits or vegetables may IMPROVE semen quality".

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