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Low levels of alcohol consumption (or about three drinks a week) were associated with a significantly increased risk of breast cancer – in findings derived from a larger study of nurses recently published in the Journal of the American Medical Association.
The study of about 106,000 U.S. nurses found women who self-reported drinking the equivalent of three to six glasses of wine each week were 15 percent more likely to develop breast cancer than women who never or rarely drank alcohol. The differences between the groups were moderate but statistically significant.
Moreover, the study found the participants who reported they drank the equivalent of two glasses of wine a day over time were 51 percent more likely to develop breast cancer than women who never or rarely drank. Hence, the study suggests higher drinking levels significantly increases the risk of developing breast cancer.
The study also found an increased risk of breast cancer was more linked to cumulative drinking over time rather than what type of alcohol participants drank, or the age when a woman begins to consume wine, spirits, or beer. > > > > Read More
