Conclusions: Our data show that aqueous C. papaya seed extract significantly and negatively affects sperm motility parameters crucial for fertility; and thus, poses as a likely candidate for male contraception.

Is papaya harmful for sperm?

Papaya seed extract can lower fertility in men. It can lower the sperm count and impact sperm mobility.

Is papaya seeds good for sperm count?

A rat study observed similar findings, reporting that papaya seed extract reduced both sperm count and sperm motility. Interestingly, researchers found that these changes were reversed within 45 days after stopping treatment ( 18 ).