
When Emily Oster, an economist, got pregnant with her now two-year-old daughter, she wanted to know more about all those rules handed down to
women once they find out their pregnant.
Only two cups of coffee a day! No alcohol. Beware deli meats.
Being
pregnant, she said, felt a lot like being a child, so she decided to
take a deep dive into research covering everything from wine and weight
gain to prenatal testing and epidurals. What Oster claimed she found was some of the
mainstays of pregnancy advice are based on inconclusive or downright
faulty science.
Some of her
conclusions? Weight gain during pregnancy is less important than a
woman's starting weight and not gaining enough may be more harmful.
Light drinking is fine (up to two glasses of wine a week in the first
trimester and up to a glass a day in the second and third trimesters).
And much of the evidence supports having three to four cups of coffee
daily, which made Oster very, very happy.