The link between smoking and cancer is well-documented and widely known. But alcohol?

“Fewer than one in three Americans recognize alcohol as a cause of cancer,” says Harriet Rumgay, researcher at the International Agency for Research on Cancer, the specialized cancer agency of the World Health Organization. “That’s similar in other high-income countries, and it’s probably even lower in other parts of the world.”

A new study shows just how much of a risk drinking can be. At least 4% of the world’s newly diagnosed cases of esophageal, mouth, larynx, colon, rectum, liver and breast cancers in 2020, or 741,300 people, can be attributed to drinking alcohol, according to a study in the July 13 edition of Lancet Oncology. Men accounted for three-quarters of alcohol-related cancers. Of the 172,600 alcohol-related cancer cases diagnosed in women, the vast majority, or 98,300 cases, were breast cancer.