Yam
Health experts say yams do stimulate one’s ovaries, thus, increasing chances of multiple births. Around Yorubaland, fertility experts say a possible explanation for the high incidence of multiple births in the area could lie in the consumption of a specific type of yam containing a natural phytoestrogen, which is thought to stimulate a woman’s ovaries to release eggs from each side. In Igbo-Ora, the diet of locals is rich in yams and this has contributed to a twin birth rate four times higher than the global average.
