The Association Between Alcohol and Breast Cancer Risk: Evidence From the Combined Analysis of Six Dietary Case-Control Studies

High consumption of alcohol may increase a woman's chances of developing breast cancer.

This research work studied the alcohol-breast cancer connection hypothesis using a meta-analytic approach. Researchers analyzed data obtained from 1,575 women with breast cancer and 1,974 women without the disease who participated in 6 studies. 

Researchers discovered that women who drank an equivalent of 40 or more grams of alcohol per day had increased risk of developing breast cancer compared to non-consumers of alcoholic beverages. The findings of this study reveal high intake of alcohol may foster the development and growth of cancerous cells and tumors in the breast.