It is known to increase testosterone levels as it is rich in zinc and magnesium – two minerals critical for male sex hormones. It also increases sperm count and its concentration. The zinc in pepper also helps in the development and movement of sperms.
Black pepper oil typically does not cause side effects. Black pepper might have a burning aftertaste. Taking large amounts of black pepper by mouth, which can accidentally get into the lungs, has been reported to cause death. This is especially true in children