Testicular and spermatotoxic potential of methanol extract of red cultivar Allium cepa in rats.

Background In both human and animals, especially in food and companion animal breeding farms, infertility is normally a challenge of great concern. Males have been found to be solely responsible for about 20-30% of infertility cases. Allium cepa (Onion), being one of the highly consumed spices worldwide, is usually overlooked as a possible reproductive toxicant.