Health | cancer Coffee, Tea Not Seen to Boost Breast Cancer Risk Drinking more, caffeinated or not, didn't increase cases in 22-year study By Nick McMaster Posted May 27, 2008 12:27 PM CDT Copied Republican presidential candidate, Sen. John McCain, R-Ariz., gives a thumbs up as he drinks a coffee at Cafe Versailles on Tuesday, May 20, 2008, in Miami. (AP Photo/Jeff Chiu) Coffee and tea don't elevate risk of breast cancer, researchers report after a 22-year study involving nearly 86,000 women. Those who drank four cups of coffee or tea—caffeinated or decaf—a day had the same incidence as those who drank a cup or less. "Coffee and tea are remarkably safe beverages when used in moderation," one scientist tells Reuters. Read These Next FBI says 'person of interest' in Kirk killing is in custody. Two photos show 'person of interest' in Kirk shooting. Moment of silence for Kirk ends in House shouting match. Videos may have captured the shooter of Charlie Kirk on a roof. Report an error