Renal Cell Cancer, Kidney Cancer

Coffee, tea, and renal cancer:

A clinical study to evaluate associations between coffee, tea, milk, soda, and fruit and vegetable juice intake and risks of developing renal cell cancer was conducted. This study included results from 13 studies including 530,469 women and 244,483 men. Follow-up was between 7-20 years. Information about diet was gathered at the beginning of the trial. The results indicate that individuals who drank 3 or more 8-ounce cups of coffee per day had a 16% reduced risk of developing renal cell carcinoma compared with those who drank less than one 8-ounce cup per day (relative risk [RR]=0.84). Individuals who drank one or more 8-ounce cups of tea per day had a 15% reduced risk of developing renal cell carcinoma compared with those who did not drink tea (RR=0.85). There were no associations between milk, soda, or juice intake. These results suggest that a greater intake of coffee and tea appears to lower the risk of renal cell cancer. (4)