More than 19 million Americans have diabetes—a condition that can produce life-threatening complications. Of the two major forms of diabetes—type 1 and type 2—type 2 comprises 90 to 95 percent of all cases in the United States. An additional 13 million people have the precursor to type 2 diabetes, called prediabetes. Worldwide, type 2 diabetes affects more than 190 million people, and some experts predict that if the current trends continue that figure could surge to over 300 million by the year 2025
