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Coffee & Health
Type 2 diabetes

Overview

A number of studies investigating the possible associations between coffee consumption and reduced risk of developing type 2 diabetes show favourable results with a moderate intake of both caffeinated and decaffeinated coffee

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Type 2 diabetes
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Affects of coffee consumption
  • Scientific research indicates that moderate coffee consumption* is associated with a statistically significant reduced risk of developing type 2 diabetes2-4
  • The association has been studied in a number of different populations and the wealth of evidence suggests that a moderate intake of caffeinated and decaffeinated coffee is associated with a lower risk of developing type 2 diabetes3,4,6-9
  • Currently, a plausible explanation for this association is still lacking. There is no clear consensus on a potential mechanism, although some research suggests coffee components including chlorogenic acids and trigonelline may be key10-12
  • Observations of beneficial effects of coffee consumption on some markers of subclinical inflammation are also interesting13,14
  • The association between coffee/caffeine consumption and diabetes appears to be specific to type 2 diabetes only
*A moderate coffee consumption is typically defined as 3-5 cups per day, based on the European Food Safety Authority’s Scientific opinion on the safety of caffeine5.

The content in this overview was last edited in March 2022. Papers in the research section and further resources are periodically updated.

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