The study, conducted by the US National Cancer Institute, used data from more than 500,000 British volunteers.
Conducted over a decade, the study found that coffee drinkers lived longer on average than those who abstained - whether they drank instant, ground, or decaf.
No matter the cause of death, drinking coffee was associated with longer life expectancy for all participants, aged between 38-73 years.
Blood samples and detailed medical histories, including health and lifestyle questions, showed that 33% of people drank between two and three cups of coffee a day.
The live-giving properties of a cup of joe even stayed in place for the survey's 10,000 respondents who drank eight cups or more a day.
The researchers said: "The study provides further evidence that drinking coffee can be part of a healthy diet and offers reassurance to coffee drinkers.
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