“Drinking alcohol increases the risk of breast cancer in women and heavy drinking increases the risk in men.
The more alcohol a woman consumes the greater the risk, with no lower threshold.
Alcohol is metabolised into acetaldehyde, a cancer-causing compound. This occurs primarily in the liver but also in breast tissue.
Alcohol increases levels of circulating hormones including oestrogen, which increases breast cancer risk.”
Find more from Breast Cancer UK (UK, June 2022)