Update: Coffee Consumption and Type 2 Diabetes Incidence

Can drinking more coffee reduce the risk of developing type 2 diabetes?…

A recent meta-analysis of 27 articles looked at the incidence of type 2 diabetes with increasing consumption of caffeinated coffee, decaffeinated coffee, as well as the caffeine component alone.

Using a dose-response analysis, researchers found a 12% [0.88 (0.86-0.90)] reduced incidence of type 2 diabetes with every 2 cups per day increase in coffee consumption, an 11% [0.89 (0.82-0.98)] reduced incidence of type 2 diabetes with every 2 cups per day increase in decaffeinated coffee consumption, and a 14% [0.86 (0.82-0.91)] reduced incidence of type 2 diabetes with every 200mg per day of caffeine consumption. The protective effects seemed to be significantly more pronounced in women compared to men.

These data indicate that coffee itself as well as the caffeine component may have a protective effect on preventing the development of type 2 diabetes.

Practice Pearls:

• Increased coffee intake may be related to a decreased incidence of type 2 diabetes.
• A protective effect against type 2 diabetes may be present with even decaffeinated coffee consumption.
• The protective effects appear to be more pronounced in women compared to men.

European Journal of Nutrition, October 2013