Is drinking coffee associated with the development of bladder cancer?
In 1990, The International Agency for Research on Cancer (IARC) evaluated coffee, caffeine, tea and maté and, after assessing the available research, gave coffee the classification 2B which is ‘possibly carcinogenic to the human urinary bladder’. Since that time several well-conducted studies have been conducted and published which have demonstrated that coffee is not a causal factor in the development of bladder cancer.
