Let’s talk numbers: the IDF Diabetes Atlas 8th Edition 2017 reports that over 350 million people between 20 to 79 years worldwide are estimated to have developed impaired glucose tolerance (IGT). Translated, this estimate equates to more than every 14th person worldwide with impaired glucose regulation after testing for an oral glucose tolerance test (OGTT), routinely used for diagnosing type 2 diabetes.
IGT occurs when results are above the normal range (7.8 mmol/L (140.4 mg/dL) to 11.1 mmol/L (199.8 mg/dL)), but not high enough to be classified as having diabetes. IGT, also called prediabetes, carries a high risk for developing type 2 diabetes. Prediabetes is a term that covers varying degrees of altered glucose metabolism.