Wild yam is a plant that has been promoted as natural DHEA because it contains diosgenin, which can be used in the lab to create estrogen and DHEA.

There are over 600 species of wild yams. About 12 species are edible. People most commonly use wild yam as a “natural alterative” to estrogen therapy for symptoms of menopause, infertility, menstrual problems, and many other conditions, but there is no good scientific evidence to support any of these uses.