National Diabetes Prevention Program

Prediabetes is when someone's blood glucose (sugar) level is too high but not high enough yet for a diagnosis of type 2 diabetes. Prediabetes can become type 2 diabetes if it is not treated. 1 in 3 American adults has prediabetes, and close to 90% of people with prediabetes don't know they have it. The risk test can help determine someone's risk for having prediabetes.