Coffee has the effect of inhibiting cancer.

People who drink more than five cups of coffee a day are as low as 20% likely to develop liver cancer. This is the result of an 11-year survey of 60,000 people on the relationship between coffee intake and liver cancer mortality at Tohoku University in Japan.

The "chlorogenic acid" in coffee has the effect of removing "reactive oxygen species", which is the main cause of cancer. There is the same study on gastric cancer, and research by the Aichi Cancer Research Center in Japan shows that people who drink more than three cups of coffee a day are 50% less likely to develop stomach cancer than those who never drink coffee. In the same study of rectal cancer, people who drank more than three cups of coffee a day were less likely to develop rectal cancer. The use of chlorogenic acid in coffee to prevent cancer has been valued by medical associations in Japan and Europe. Also, manual extraction is more effective than instant coffee if you want to extract more chlorogenic acid.

Incidentally, recent studies have shown that if there is an increase in "reactive oxygen species", the main cause of cancer, it oxidizes the cell membrane, which is the main cause of aging and cancer. Coffee, which contains a lot of chlorogenic acid, is an "alkaline drink", which can help remove "reactive oxygen species" from the body.