People often ask whether their daily coffee helps or hurts their liver. The research points toward benefit, though not without caveats.

1. Higher Coffee Intake Tracks With Lower Liver Disease Risk

A UK Biobank study of about 355,000 adults followed for a median of 13 years found that risk generally fell as coffee intake rose. Compared with no coffee, drinking 5 or more cups daily was associated with a 32% lower risk of cirrhosis, a 47% lower risk of hepatocellular carcinoma (HCC), and a 42% lower risk of liver-related death. Participants with cirrhosis or HCC at baseline were excluded.

2. Benefit Appears With More Cups of Coffee

At 3-4 cups, risk reductions were 35% for cirrhosis, 35% for HCC, and 41% for liver-related death. Those results were similar to the 5-or-more-cup results for cirrhosis and liver-related death, but HCC risk fell further at 5 or more cups. A 2025 American College of Gastroenterology guideline conditionally recommends coffee, preferably at least 2 cups daily, for patients with chronic liver disease, to reduce the risk of fibrosis progression or HCC, based on low-quality evidence. 

3. Decaf May Count, and Unsweetened Coffee Is Favored 

In the UK Biobank study, protective associations, including on MRI, were similar for caffeinated and decaffeinated coffee. Compared with nondrinkers, those who drank 5 or more cups daily had less liver fat and iron and lower odds of elevated fibroinflammation. Higher intake was also tied to lower fibrosis-related and macrophage-activation markers. Adding sugar or artificial sweeteners did not materially change the associations with clinical outcomes but was linked to higher odds of elevated fibroinflammation on MRI. The authors suggested promoting moderate, unsweetened coffee consumption.

4. The Evidence Has Limits

The UK Biobank study data are observational. Self-reported intake, residual confounding, and reverse causation can’t be ruled out. The cohort was mostly White and health conscious, which limits generalizability. A narrative review likewise could not establish causality, because most of the epidemiologic evidence was observational.

5.  Coffee Complements Care but Doesn’t Replace It

The narrative review associated regular coffee drinking with fewer new cases and slower progression across several liver conditions, including chronic viral hepatitis, alcohol-related liver disease, metabolic dysfunction-associated steatotic liver disease, HCC, cirrhosis, and fibrosis. Its authors attributed this to several coffee compounds, which they said act through antioxidant, anti-inflammatory, antifibrotic, lipid-modulating, and gut microbiota-modulating effects. The authors also suggested that coffee may work better alongside a healthy diet, regular exercise, and reduced alcohol intake. The UK Biobank study likewise suggested that moderate coffee may complement existing prevention strategies, particularly in people without established liver disease. 

Bottom Line

Higher coffee intake is associated with lower risk of cirrhosis, HCC, and liver-related death. Imaging and molecular findings strengthen the biologic rationale, and the associations held for both caffeinated and decaffeinated coffee. Clinicians can discuss coffee as a potentially helpful habit, but the evidence is observational and does not establish it as a proven preventive therapy.

This article is based on the Medscape MedBriefs titled “ Increased Coffee Intake May Lower Liver Disease Risk” and “ Regular Coffee Drinking Can Protect and Restore Liver Health.” It was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.

For further reading, see the Medscape commentary " Coffee's Optimal Liver-Protective Dose."