Just One Drink Per Day Raises Cancer Risk
According to new research, less than one alcoholic drink per day—just 10 grams of alcohol—increases breast cancer risk 5 percent in women before menopause and 9 percent in post-menopausal women. Most standard drinks—a glass of wine or beer—contain about 14 grams of alcohol.
The report, which was conducted by the conducted by the American Institute for Cancer Research in collaboration with the World Cancer Research Fund, analyzed 119 existing studies involving about 12 million women and 260,000 breast cancer cases. Researchers found that, while alcohol increases breast cancer risk, certain other modifiable lifestyle factors—regular exercise, weight control, and a healthy diet, for example—help decrease the risk.
Overweight/obesity and gaining weight in adulthood are known risk factors for breast cancer. When it comes to physical activity, this recent analysis suggests exercise can lower the risk by about 17 percent in premenopausal woman and 10 percent in women after menopause. More research is needed to study the effects of specific food groups on breast cancer risk, according to researchers.