The ACS notes that “Researchers have found several risk factors that might increase a person’s chance of developing colorectal polyps or colorectal cancer.” Regarding alcohol use, the ACS states:
Colorectal cancer has been linked to moderate to heavy alcohol use. Even light-to-moderate alcohol intake has been associated with some risk. It is best not to drink alcohol. If people do drink alcohol, they should have no more than 2 drinks a day for men and 1 drink a day for women. This could have many health benefits, including a lower risk of many kinds of cancer.1
The ACS also notes that “Scientists have found several risk factors that make a person more likely to get stomach cancer. Some of these can be controlled, but others cannot.” Specifically about alcohol use, the ACS notes: “alcohol use probably increases the risk of stomach cancer,” and that “the evidence for this link is strongest for people who have 3 or more drinks per day.”2
Find research articles and learn more at PubMed: