A study of over 350,000 people suggests that drinking coffee—regular or decaf—could reduce the risk of cirrhosis, liver cancer, and death from liver disease. Researchers urge caution, noting coffee is no substitute for healthy habits, but the findings highlight a potential benefit for daily coffee drinkers.
Five cups of coffee a day might do more than just keep you alert—it could also help protect your liver. According to a major study published in Clinical Gastroenterology and Hepatology, researchers found that people who regularly drank coffee, including decaf, had a significantly lower risk of developing cirrhosis, liver cancer, and dying from liver-related diseases.
The research analyzed health data from 354,957 adults in the UK Biobank who had no history of cirrhosis or liver cancer at the start. Over a median follow-up of 13 years, scientists tracked new cases of liver disease, MRI scans, and blood protein profiles to assess liver health.
Coffee and Liver Health
The results point to a clear trend: the more coffee people drank, the lower their risk of serious liver problems. Compared to non-coffee drinkers, those consuming five or more cups daily saw a 32% reduction in cirrhosis risk, a 47% drop in liver cancer risk, and a 42% decrease in liver-related mortality. Even moderate coffee intake—one or two cups a day—was linked to measurable benefits, but the strongest effects appeared with three to four cups daily.
Beyond clinical diagnoses, imaging showed coffee drinkers had less liver fat, lower iron accumulation, and fewer signs of fibrosis and inflammation. Blood tests also revealed protein patterns associated with healthier liver function.
Decaf Counts Too
One of the study's most notable findings is that decaffeinated coffee offered similar protective effects as regular coffee. This suggests that compounds other than caffeine—such as antioxidants and anti-inflammatory agents naturally present in coffee—may play a key role in supporting liver health.
Researchers also examined whether adding sugar or sweeteners changed the picture. Overall, the risk reductions remained, but using artificial sweeteners was linked to a higher chance of certain inflammation and fibrosis markers on MRI scans. The authors caution that while coffee may be beneficial, loading it with sugar, syrups, or high-calorie additives could undermine its positive effects.
Limits and Cautions
Despite the promising results, the study's authors stress that coffee is not a cure or a replacement for proven healthy habits. The research is observational, meaning it cannot prove that coffee directly prevents liver disease. Self-reported coffee consumption, unmeasured lifestyle factors, and a predominantly European sample are all limitations to consider.
Experts recommend not increasing coffee intake solely for liver protection. The best ways to prevent liver disease remain maintaining a healthy weight, limiting alcohol, exercising regularly, and managing blood sugar, blood pressure, and cholesterol. For those sensitive to caffeine—such as people with insomnia, anxiety, uncontrolled hypertension, or certain heart rhythm disorders—decaf may be a safer option, but any dietary changes should be discussed with a healthcare provider.
While the study focuses on coffee's potential benefits, it's worth noting that other simple lifestyle adjustments can also impact health. For example, practical home solutions like using a damp towel to cool your room, as described in this guide to beating the heat without air conditioning, show how everyday choices can make a difference in well-being.
Ultimately, the findings add to a growing body of evidence suggesting coffee could be part of a liver-friendly lifestyle—provided it's consumed in moderation and not as a substitute for medical advice or healthy living.
