When trying-to-start a family, some parents-to-be make a single wish, while others make two. Double the giggles, double the grins, double the trouble when blessed with twins!

The idea of having twins is an exciting one that many couples try to wish into existence. We’ve heard the old wives’ tales that claim if you eat this or do that during your prenatal stage, you will be bestowed with sweet multiples in one shot. What if there was some truth to these fertility myths after all?

Read on to learn how you can increase your likelihood of having twins.

Eat Yams

Studies show that adding yams to your daily diet may help improve your chances of having twins. According to Africa Check: “The Yoruba, a large ethnic group in southwestern Nigeria, parts of Benin, Togo and Ghana, have one of the highest rate of twin births in the world”. Which is due to their large consumption of yams! If your heart is set on having twins, then here’s your unofficial excuse to eat yams year-round instead of only on Thanksgiving.

Good Things Come in Bigger Packages

While maintaining a healthy weight is vital for a successful pregnancy, research has found that women who are taller or have a higher body mass index (BMI) are more likely to carry twins.

Healthine reports that: “Fraternal twins are more common in women who are larger. This could mean taller and/or overweight. Experts aren’t sure why this is the case but suspect it might be because these women take in more nutrients than smaller women”.

And Have A Bigger Family

If at first you don’t succeed, try again! The Baby Center states that the more pregnancies a woman has experienced, the more likely she is of conceiving twins. In fact, a woman who has already given birth to twins has a higher chance of having them again.

Twins Run in The Family

They say if twins run in your family, then the probability of having them is greater, right? Yes and no. It depends on which side of your family: even if your paternal side of the family has a history of twins, it doesn’t improve your likelihood.

A history of twins on your maternal side, however, just might do the trick! Dr. Anja Scholze of The Tech states: “For a given pregnancy, only the mother’s genetics matter. Fraternal twins happen when two eggs are simultaneously fertilized instead of just one. A father’s genes can’t make a woman release two eggs,”