Coffee contains a number of beneficial nutrients, including vitamin B2, vitamin B3, magnesium, potassium, and antioxidants. Previous research has found that coffee may help reduce the risk of developing type 2 diabetes. A new study looked further into this, and found that filtered coffee may help reduce the risk of type 2 diabetes, but not boiled coffee.
For their study, the researchers used plasma samples from 842 participants in the Västerbotten Intervention Programme. They analyzed the samples to measure biomarkers that indicated if the participant drank filtered or boiled coffee. The participants were then followed for 10 years, and all cases of type 2 diabetes were recorded.
Participants who drank two to three cups of filtered coffee per day had a 60% lower risk of developing type 2 diabetes, compared to those who drank less than one cup of filtered coffee per day. Boiled coffee had no effect on the the risk of developing type 2 diabetes.
The study was conducted by researchers from Chalmers University of Technology and Umeå University. It was published online ahead of print on December 9, 2019 in the Journal of Internal Medicine.
