Jo Anne Cassadaga, New York 4/20/2014 12:26:07 PM My sister has 2 dogs who died at the age of 10 from diabetes which set on so bad it could not be controlled. Was there anything that could have caused it? She switched their brand of natural foods often and I who bred them have kept my dogs on the same food for years. I have no dogs with diabetes. Her vet told her it is genetic. Please help I do not want to continue breeding if there is no test for it.