Papaya Seeds can cut a mans sperm count down to zero of ingested daily so Papaya Seeds can sometimes prevent pregnancy.
If taken daily Papaya Seeds could cut a man's sperm count to zero and is very safe for long-term use although if you still don't want to become pregnant or don't want to get a woman pregnant when having sex you should still practice safe sex by wearing a condom and the woman should always take some birth control pills anyway.