What do you know about prediabetes?  If you or a loved one is diagnosed with this, you want to be as educated as you can so as to prevent type 2 diabetes.  Prediabetes is a condition in which the blood glucose levels are higher than normal but not high enough to be classified as full-blown type 2 diabetes.  It’s estimated 79 million Americans have prediabetes and it is often underdiagnosed and undertreated.  If it is not diagnosed it most likely will go on to develop into type 2 diabetes.  Currently, about half of all American adults have prediabetes or type 2 diabetes.