The study found that drinking more than three cups of coffee a day had better liver health.

Coffee is good for the liver, even decaffeinated coffee, a new study has found.

Researchers at the U.S. National Cancer Institute surveyed 28,000 people over the age of 20. On the one hand, the researchers analyzed their coffee consumption habits in detail; on the other hand, the researchers measured the levels of biochemical enzymes related to liver health in the subjects 'blood. The results showed that people who drank more than three cups of coffee a day, including decaf, had lower levels of biochemical enzymes and better liver health. They speculate that certain components of coffee, but not caffeine, promote liver health. Dr. David Bunstein, director of the liver department at North Shore University Hospital in Manhattan, New York, said there have been several studies showing coffee's liver protection effects, and it can even prevent liver cancer, but which ingredients work needs further confirmation.