High alcohol consumption has been shown to be associated with an increased risk for many cancers including breast and ovarian cancer. However, it has been suggested that low to moderate wine consumption (less than 2 glasses of wine daily for women) may be protective.
This review; a meta-analysis of all the available data looked at 454 reports which conformed with the criteria for inclusion. The relative risk of developing breast or ovarian cancer for moderate drinkers was the same as the normal population (RR 1.03).
Moderate drinking is protective against gastric cancer. The authors suggest this may be due to antibacterial activity of alcohol against H. Pylori. Low to moderate consumption of alcohol does not increase ovarian cancer risk.
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