What is the link between alcohol and cancer risk?

According to the expert report from the American Institute for Cancer Research, Food, Nutrition and the Prevention of Cancer: a Global Perspective, there is convincing evidence that alcohol increase the risk of cancer of the mouth, pharynx, larynx and esophagus. The risk of upper respiratory tract cancer is greatly increased if drinkers also smoke. Alcohol also increase the risk of liver cancer and probably increases the risk for colon, rectal and breast cancer.

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