Impaired Glucose Tolerance (IGT) is a pre-diabetic state of dysglycemia, that is associated with insulin resistance and increased risk of cardiovascular pathology. IGT may precede Diabetes mellitus type 2 by many years. IGT is also a risk factor for mortality.[1]
According to the criteria of the World Health Organization and the American Diabetes Association, impaired glucose tolerance is defined as[2][3]:
It is possible to reverse pre-diabetic states with improved diet and exercise.