People who increased the amount of coffee they drank each day by more than one cup over a four-year period had a 11% lower risk for type 2 diabetes than those who made no changes to their coffee consumption, according to a new study led by Harvard School of Public Health (HSPH) researchers.
In addition, the study found that those who decreased their coffee consumption by more than a cup per day increased their type 2 diabetes risk by 17%.
Results showed that participants who increased their coffee consumption by more than one cup per day (median change=1.69 cups/day) over a four-year period had a 11% lower risk of type 2 diabetes in the subsequent four years compared to those who made no changes in consumption. (A cup of coffee was defined as eight ounces, black, or with a small amount of milk and/or sugar.)
Those who lowered their daily coffee consumption by more than one cup (median change=2 cups/day) had a 17% higher risk for diabetes. Changes in decaffeinated coffee consumption and caffeinated tea consumption were not associated with changes in risk for type 2 diabetes.
