Alcohol - Questions and Answers ABOUT FOODS AND CANCER PREVENTION AND SURVIVAL
Alcohol
QUESTION: How much alcohol is safe to consume?
ANSWER: Although we occasionally hear of the reputed benefits of moderate
alcohol consumption for reducing heart disease risk, even one drink per
day, if consumed every day, increases breast cancer risk.1 A recent review
of alcohol consumption and cancer risk also showed increased risk for
liver and colorectal cancer.2
Possible mechanisms by which alcohol may exert its cancer-causing
effects include the toxic effect of alcohol metabolites, the production of free
radicals, and disruption of folic acid’s protective mechanisms. Polycyclic
aromatic hydrocarbons, which are known carcinogens, have also been
found in alcoholic beverages. In addition, alcohol consumption may lead to
nutritional deficiencies, affecting the absorption of cancer-fighting nutrients.
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