Even one alcoholic drink a day seems to boost your cancer risk.  A new U.S. study, in conjunction with research from Canada and France, used recent data and studies on alcohol consumption and cancer mortality to provide a long delayed update on alcohol related cancer deaths.  The scientists have determined that alcohol accounts for about 3.5 percent of the 577,000 cancer deaths in the U.S. each year.  Breast cancer accounted for most alcohol related cancer deaths in woman, about 15 percent of all breast cancer deaths, or some 6,000 cases a year.  In men, cancers of the mouth and throat were the most common cause of alcohol-related cancer deaths, also with about 6,000 cases a year.  The study published in the American Journal of Public Health says three or more drinks accounted for most of the deaths from seven kinds of cancer.  But consuming just 1.5 drinks a day, or “less” was associated with up to 35 percent of those cancer deaths.