New research led by the Harvard School of Public Health has shown that increasing you coffee consumption by one and a half cups per day, or 360 ml, over a four-year period could reduce your risk of developing type 2 diabetes by more than 10 per cent.
While coffee and tea consumption has been associated in the past with lower risk of type 2 diabetes, their was little scientific knowledge to demonstrate the exact influence on that risk.
Published in Diabetologia, the journal of the European Association for the Study of diabetes, researchers used data from three large scale US-based health studies to evaluate the effect changes in coffee and tea consumption had over four years.
The analysis surveyed 120,000 people and the authors documented a total of close to 8,000 incidences of type 2 diabetes. They found that those participants who increased their consumption of coffee by more than 1 cup a day over four years reduced their risk of developing type 2 diabetes by 11 per cent.
Interestingly, participants who decreased their consumption of coffee by 1 cup a day or more had a 17 per cent higher risk for developing type 2 diabetes.
Those that consumed three or more cups of coffee had the lower risk of type 2 diabetes of all the participants, 37 per cent lower than those who consumed one cup of coffee or less daily.