Peanuts are not bad for someone living with diabetes, but the trick, as it is with almost all food is how much. Here are a few blogs on the subject of nuts that may help you know more about the recent positive reports about nuts and diabetes.
Nuts and Your A1c: http://www.healthcentral.com/diabetes/c/17/141487/nuts-carbs
Got a chronic health problem? NUTS! http://www.healthcentral.com/diabetes/c/77518/40537/chronic-problem
Nuts and Seeds and your Diabetes: http://www.healthcentral.com/diabetes/c/17/56417/nuts-seeds
Mediterranean Diet, plus Nuts: http://www.healthcentral.com/diabetes/news-277751-98.html