Choose non-alcoholic drinks. Alcohol reduces the liver's ability to metabolize estrogen. (One of the liver's jobs is to reduce the potency of hormones and help to eliminate them from the body.) Even one to two drinks a day over your lifetime could spike your risk of breast cancer, some studies show. In one study, the amount of alcohol in three, 4-ounce glasses of wine more than tripled the amount of estrogen in women's bodies.