Whether men drink caffeinated or decaf coffee, a large new AICR-supported study suggests that men who consistently drink a lot of it may reduce their risk of the most lethal form of prostate cancer.
The study was published in the online edition of the Journal of the National Cancer Institute.
Previous studies on coffee and prostate cancer have found neither increased nor decreased risk. The new JNCI study is unique in that it focused on the advanced form of the disease and is the largest to date.
This study tracked almost 48,000 U.S. men who reported how much coffee they drank every four years from 1986 to 2008. During the study period, 5,035 cases of prostate cancer were reported, including 642 fatal cases.
For all forms of prostate cancer, the study found that men who consumed six or more cups of coffee daily had nearly a 20 percent lower risk than non-drinkers. When focusing only on the deadly form of prostate cancer, the protective association was even stronger. Men who drank the most coffee had a 60 percent lower risk of developing lethal prostate cancer compared to non-coffee drinkers.