Girls who grow up eating PB&Js could be doing their breast health a favor.
Researchers from the Washington University School of Medicine in St. Louis, Dana-Farber Cancer Institute and Harvard Medical School found an association between regularly eating peanut butter and having a lower risk of developing benign breast disease in early adulthood. Benign breast disease is noncancerous, and occurs when there are changes to the breast or an injury or infection leads to lumps in the breast tissue. The research team did not investigate a link between peanut butter and malignant breast lumps or cancer.
Other sources of vegetable fats and proteins — such as soybeans, beans and lentils — could also have the same effect, but researchers noted that the data on these particular foods in the study was not as abundant as data on peanut butter.
It’s important to note that the study only showed an association between peanut butter consumption and breast disease, and doesn’t show that peanut butter can definitively prevent breast disease.
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