A large new review of decades of research has found that drinking coffee can protect the liver. The study, published in a scientific journal, analyzed data from multiple studies to understand the connection between coffee consumption and liver health.
The review focused on metabolic dysfunction-associated steatotic liver disease (MASLD), formerly known as non-alcoholic fatty liver disease. This condition affects about one in three adults worldwide and can progress to cirrhosis or liver cancer.
Researchers found that coffee drinkers had lower levels of liver enzymes that indicate cell damage. These enzymes include ALT, AST, and GGT. Coffee consumption was also linked to a reduced risk of fibrosis and cirrhosis, even in people who already had liver disease. The study showed up to a 40 percent lower risk of developing hepatocellular carcinoma, the most common form of liver cancer.
Additional benefits included healthier gut bacteria and lower inflammation. Coffee drinkers had a 29 percent lower risk of developing MASLD. The effects appeared to be dose-dependent, meaning more coffee provided more protection. The strongest benefits were seen in people who drank three or more cups per day, which is about 24 ounces.
The protective effects come from coffee’s bioactive ingredients. Caffeine helps activate the body’s own antioxidant defenses. Chlorogenic acids, which are a group of polyphenols, support liver health by regulating glucose and fat metabolism, reducing oxidative stress, and protecting the liver from damage. Diterpenes in coffee can help stimulate the body’s natural detoxification processes.
How coffee is brewed can affect its health benefits. Using whole, organic Arabica beans and grinding them fresh preserves flavor and antioxidants. Coffee beans can contain mold, so choosing brands that test for mold, mycotoxins, and heavy metals is recommended. Longer brewing methods like cold brew or French press tend to extract higher levels of antioxidants. Espresso and pour-over are also good options.
Adding too much sugar, milk, or creamer can reduce coffee’s beneficial effects. Skipping sugar packets and syrups is best. Adding protein powder or collagen can make the cup more balanced and filling.
The research consistently shows that moderate coffee consumption supports overall health and longevity. Drinking about three cups a day benefits the liver as well as heart, metabolic, and gut health.
