Can drinking alcohol increase the risk of breast cancer?
Moderation is key. One drink per day has been shown to slightly increase the risk of breast cancer. Having more than one drink per day has shown to be a more significant risk factor, and the alcohol content doesn’t matter: wine, beer or a mixed drink. Alcohol also increases estrogen in your bloodstream.
Although we know that more than one drink per day increases risks, to date there are no studies that demonstrate directly that the more a person drinks, the greater their risk for cancer. And in some cases, drinking one glass of wine a day can offer heart-health benefit. If you drink alcohol, this is an important topic to discuss with your doctor so that you will know what limits are best for you to observe.
Medically reviewed June 2023