The very-pregnant Kate Middleton has a lot more in common with American moms than her British subjects, it turns out. Unlike many English mothers-to-be, the Duchess of Cambridge follows American standards when it comes to drinking.

While the Centers for Disease Control says just 10 percent of American women sneak a sip of alcohol while pregnant, in part because of federal warnings booze could cause birth defects, a majority of English women in a new British study had a drink a day while pregnant.