Researchers at the US National Cancer Research Institute in Rockville, Maryland conducted a study on 490,000 people which concluded that drinking four or more cups of coffee a day may cut the chances of developing bowel cancer by 15%.
The study monitored the group over a span of 10 years. They began in the mid 1990’s by questioning the group about their exercise and dietary habits. For the group that reported drinking four or more cups of coffee each day, the risk of being diagnosed with bowel or rectal cancer over the decade was 15 percent lower than non-drinkers of coffee.
The research was published in the American Journal of Clinical Nutrition.