Does Yam Improve Fertility?
Does Yam Improve Fertility? Yams. Research shows yams have an ovulation stimulating substance that can help boost fertility. Why do yams help conceive twins? Yes, yams. Apparently it contains phytoestrogen, an estrogen compound that increases a woman’s Follicle Stimulating Hormone (FSH), and may induce a higher rate of ovulation. How do yams help with fertility?