The forbes page had this:-
"Steel yourself for the results of a new study that’s making headlines: Those of us under 55 who drink a lot of coffee – more than four cups per day – may be at greater risk of an early death. And not death from heart problems, but death from all causes. The study, from Mayo Clinic Proceedings, followed people for almost two decades, and found that in both sexes, younger people were more likely to die of anything than people who drank less. Though it may sound bleak, the study really just adds to the mishmosh of coffee studies all pointing at different outcomes. And good news remains – many earlier studies have found that heavy coffee consumption is linked to reduced mortality. So the logical advice is still to enjoy your daily ritual if it seems to work for you.
But here’s what the new study found. The team tracked almost 44,000 participants for 17 years, noting how many people died, and of what cause. Lifestyle factors like coffee consumption, diet, exercise, smoking, and weight were taken noted and potential confounders controlled for. It turned out that 2,500 people died during the study period, with men making up over 87% of those deaths.
The headline-worthy results: People under 55 who drank more than 28 cups per week were more likely to die of almost any cause than people who drank less. Women were twice as likely to die from any cause and men were 56% more likely, compared to people who drank less. Even controlling for cigarette smoking, which is generally the big confounder in coffee studies, did not totally eliminate the link."
The above mentioned 4 or more cups of coffee a day. That said, I remember that US coffee is very weak compared to Italian etc., so much so that my aged American friend would drink a dozen cups of coffee a day while travelling around California.
