Alcohol Promotes Some Cancers, Inhibits Others

Alcohol is linked to higher risk of breast cancer

Do you drink alcohol in part because you think it’s good for heart and brain health? If so, you may be increasing your risk of cancer.

From JAMA Network:

Ample evidence has been available for some time indicating that alcohol use is a preventable risk factor for cancer, and the World Health Organization deemed alcohol a carcinogen more than 30 years ago. In the United States, it is estimated that 5.6% of incident cancer cases (approximately 87 000 each year) are associated with alcohol, including cancers of the oral cavity, pharynx, larynx, liver, esophagus (squamous cell carcinoma), female breast, and colorectum.1 Type of alcohol does not appear to matter; all alcoholic beverages include ethanol, which increases levels of acetaldehyde and in turn promotes DNA damage. Moreover, even moderate levels of consumption (often defined as approximately 14-28 g/d, the equivalent of about 1-2 drinks) appear to be associated with higher risk of some cancers, including cancers of the female breast.2 A protective association has emerged for some cancers, with the most evidence for kidney, Hodgkin lymphoma, and non-Hodgkin lymphoma.2 Nonetheless, the overall cancer burden associated with alcohol use is substantial and comparable with that of other preventable risk factors such as UV exposure and excess body weight.

Source: Alcohol and Cancer Risk: Clinical and Research Implications | Oncology | JAMA | JAMA Network

Steve Parker, M.D.

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