For how we live.
Two meta-analyses tie an extra two cups a day to roughly a third lower risk of both liver cancer and cirrhosis, with decaf showing a smaller effect. It is all observational, and the evidence quality is graded very low.
Hepatitis C is usually silent for years and is the reason for much chronic liver disease. A short course of antiviral pills cures more than 95% of cases, which is what changed the screening advice.
The two dominant causes of chronic liver disease are alcohol and metabolic fat. For alcohol, cirrhosis risk climbs exponentially with intake — and in women it was already raised at about one drink a day.