Girls between the ages of nine and 15 who regularly eat peanut butter are 39% less likely to develop benign breast disease by the age of 30, new research shows.
While benign breast disease is noncancerous, it can increase the risk of breast cancer later in life, researchers from the Washington University School of Medicine and the Harvard Medical School say in the new study.
"These findings suggest that peanut butter could help reduce the risk of breast cancer in women," senior author Graham Colditz said.
The study followed 9,039 girls who were between the ages of nine and 15 in 1996. They completed questionnaires annually through to 2001, then again in 2003, 2005, 2007 and 2010.
The study was published in the journal Breast Cancer Research and Treatment.
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