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Scientific research indicates that moderate coffee consumption is statistically significantly associated with a reduced risk of developing type 2 diabetes1-17. Moderate coffee consumption is typically defined as 3-5 cups per day, based on the European Food Safety Authority’s review of caffeine safety18.
The association has been studied in several different populations and the available research suggests that a moderate intake of coffee is associated with a lower risk of developing type 2 diabetes, compared to consuming none or less than 2 cups per day2,15-17. The association is seen with both caffeinated and decaffeinated coffee2,5,17.
Currently, a plausible mechanism to explain this association is still lacking. There is no clear consensus on a potential mechanism, although observations of beneficial effects of coffee consumption on some markers of subclinical inflammation are interesting19.
The association between coffee/caffeine consumption and diabetes is specific to type 2 diabetes only. For more information on the difference between type 1 and type 2 diabetes, please refer to this factsheet.
The content in this Topic Overview was last edited in June 2017. Papers in the Latest Research section and further resources are added regularly.
This information is intended for Healthcare professional audiences.
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