In 2013, Mother Jones reported on a European pharmaceutical manufacturer that produced an identical emergency contraceptive to Plan B.
The company, HRA Pharma, put warning labels on its product Norlevo: Women who weighed over 165 pounds would see less promising results than others who weighed much less. Women who weighed 176 pounds, however, would see no results at all.
The Center for Disease Control and Prevention assessed in 2016 that the average American woman over 20 weighs 166.2 pounds. Of that average, almost 57 percent of African American women had a BMI of 25 or over.
High-earning women with college degrees are less likely to be obese than those less privileged—especially those who are poorly educated living in poverty.