My mother, my father's mother, and innumerable cousins have Type 2 diabetes. I've been diagnosed as borderline hypoglycemic, so I see where I'm headed. Almost 3 years ago I moved back home to act as caretaker, and in the process I began a significant change in the eating habits of the whole family. Here's what we did. The biggest change was cutting out our reliance on packaged foods. No more pas…