Issue 40 Februay 2012
5. Why Coffee lovers are at a Reduced Risk of Type 2 Diabetes

¬†Some previous studies have shown that coffee drinkers are at a lower risk for developing Type 2 diabetes, but the reason was unclear. A new study published in ACS' Journal of Agricultural & Food Chemistry indicates the role of a substance called human islet amyloid polypeptide (hIAPP) in causing Type 2 diabetes. The researchers Ling Zheng, Kun Huang and colleagues decided to see if coffee's beneficial effects might be due to substances that block hIAPP. They identified two categories of compounds in coffee that significantly inhibited hIAPP. They suggest that this effect explains why coffee drinkers show a lower risk for developing diabetes. "A beneficial effect may thus be expected for a regular coffee drinker," the researchers conclude.

The previous studies showed that people who drink four or more cups of coffee daily have a 50%  lower risk of Type 2 diabetes. And every additional cup of coffee brings another decrease in risk of almost 7%.
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