Summary

Alcohol is the third leading preventable cause of cancer in the US, contributing to 100,000 cancer cases and 20,000 deaths annually, according to a new US surgeon general advisory.

Breast cancer accounts for 16.4% of annual alcohol-related cancers, with alcohol increasing the risk of at least seven types, including liver, colorectal, and throat cancers.

Most deaths occur among heavy drinkers, though 17% occur within recommended limits.

Alcohol promotes cancer through DNA damage, inflammation, and hormone changes. Despite clear links, only 45% of Americans recognize alcohol as a cancer risk.