A new comprehensive review from the University of Washington finds that even one drink a day may raise the risk of 10 different cancers. The analysis, published in Nature Health, examined 843 studies spanning 60 years of data.
The research looked at alcohol's relationship with 20 health outcomes. For cancer, the evidence was clear: risk rises with any level of drinking. High consumption increased risk across all 20 conditions studied, including type 2 diabetes, Alzheimer's, and heart disease.
Low consumption - less than one drink daily - was linked to pharyngeal, colorectal, esophageal, breast, liver, pancreas, and prostate cancers. The strongest association was with pharyngeal cancer.
The review also found links between drinking and pancreatitis, cirrhosis, and other chronic liver diseases. Connections to lower respiratory infections and tuberculosis were weaker. The relationship with cardiovascular, metabolic, and neurological conditions was less clear.
Lead researcher Emmanuela Gakidou states, "The science on alcohol and health is genuinely complex. For cancer, the evidence is consistent and unambiguous." The team warns that current evidence does not support a universal safe threshold and urges population-specific public health guidance.