In two separate recent studies, blueberries have been shown to prevent insulin resistance and diabetes. They also prevented degenerative gene changes that induce inflammatory cascades, potentially helping to prevent the development of chronic degenerative diseases. In one of the studies, rats were given a diabetes producing diet. One group was administered blueberries along with the bad diet, the other was not. In the blueberry group, the rats were protected from developing insulin resistance and high blood sugar levels. The rats not fed blueberries developed diabetes and insulin resistance. So if you have a family history of diabetes or metabolic syndrome you should consider adding blueberries to your diet regularly. Also, if you are overweight or already diabetic, you should consider adding blueberries to your regimen.
 
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