Habitual drinking of mate, coffee, and tea may put an individual on the path to being diagnosed with bladder cancer.

​This study examined the relationship between pre-illness intake of non-alcoholic beverages, such as mate, coffee, and tea, and the onset of bladder among men and women in Uruguay. Researchers studied the non-alcoholic beverage consumption levels of 501 patients undergoing treatment for bladder cancer and 255 individuals newly diagnosed with the disease between 1996 and 2000. 

Researchers noted that increased intake of coffee, tea, and mate increased an individual's susceptibility to bladder cancer. "Our results suggest that drinking of mate', coffee, and tea may be risk factors for bladder carcinoma in Uruguay," the authors concluded.