Good news for coffee lovers

Two cups of coffee a day may lower type 2 diabetes risk, a new study found.

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Image: Mason/Shutterstock

If you’ve been drinking more than one cup of coffee a day for the past 4 years, you may have an 11 percent lower risk of developing type 2 diabetes. If you decided to quit coffee or stopped consuming as much as you used to, you may have increased your chance of developing type 2 diabetes by 17 percent, according to a new study led by researchers at the Harvard School of Public Health.

The researchers analysed data on coffee, tea and decaffeinated coffee consumption from more than 122,000 men and women who were evaluated every four years; 7,269 cases of type 2 diabetes were documented.

The results showed that having more than one cup of coffee a day for at least a four-year period lowers the risk of type 2 diabetes by 11%.

"Our findings confirm those of previous studies that showed that higher coffee consumption was associated with lower type 2 diabetes risk," said Shilpa Bhupathiraju, lead author and research fellow in the Department of Nutrition at HSPH in a news release. "Most importantly, they provide new evidence that changes in coffee consumption habit can affect type 2 diabetes risk in a relatively short period of time."

Just don’t over do it. A cup of coffee is equivalent to 236 ml (8 ounces) of black coffee with very little or no milk and sugar.