Study: Girls Who Eat Peanut Butter Lower Their Risk of Breast Cancer Later in Life Start spreading the news, there is a new found benefit for girls who eat peanut butter. According to a study from Washington University School of Medicine in St. Louis and Harvard Medical School, girls 9 to 15 years of age who regularly ate peanut butter or nuts were 39 percent less likely to develop benign breast disease by age 30.

More From CBS St. Louis

Download The App
Watch CBSN Live

Listen Live