Text:

“Something that a lot of Yoruba and Igbo and just Nigerian people in general will do during their pregnancies is eat a lot of yams. There are many positive associations with yams — they’re seen as a nutritious food, a staple starch in Nigeria, found in many dishes. My mom said that when she was pregnant with me, she ate a lot of yams. And her mom did as well — my grandma gave birth to twins, and my grandma’s mom did too, and my grandma was a twin. I think it’s a good luck thing. It won’t always mean you’ll have twins, but it’s just a superstition.”

Context:

As the informant notes, this practice is common in Nigerian customs related to pregnancy and health. The belief, common among the Yoruba and Igbo people to whom her family belongs, has been passed down through at least four generations of women in her direct family line. She reflects that she has already thought of following the same practice eventually. Nigeria is the world’s largest producer of yams, supplying more than half of the world’s yams, meaning that cultural importance in Nigeria amplifies a value that goes far beyond nutritional benefit.

Analysis:

This belief is a colorful example of sympathetic folk medicine: yams are a food associated with abundance, fertility, and foundational nourishment in Nigerian culture, and it is believed that those same qualities will be imparted to a pregnant body. The association between yam consumption and twin births is particularly interesting — twins are sacred in Yoruba culture, associated with good fortune and spiritual power, and this may be why the belief has such strong associative logic. The documented history of twins in this informant’s family over generations empirically supports the folk belief, at least in the family’s narrative. The community’s encouragement to eat is also an endearing form of support for women during a biologically vulnerable period. Whatever the yams do or don’t do, the practice is an act of cultural continuity: each generation of women who eats yams during pregnancy takes part in a chain of care and tradition that links them materially and symbolically to their mothers and grandmothers before them.