Aluminum, which is not a normal physiological component of breast tissue, has been measured recently in human breasts and breast cyst fluids. The aluminum has been detected at levels above those found in blood serum or milk.
An examination of healthy women and breast cancer-affected women found a positive correlation between levels of aluminum and ferritin and the presence of breast cancer.
According to the study, as reprinted on the website Green Med Info:
“These results may suggest a role for raised levels of aluminum ... as biomarkers for identification of women at higher risk of developing breast cancer. The reasons for the high levels of aluminum ... remain unknown but possibilities include either exposure to aluminium-based antiperspirant salts in the adjacent underarm area and/or preferential accumulation of aluminium by breast tissues.”