Definition of Impaired glucose tolerance

Impaired glucose tolerance is a transitional stage between normal glucose levels and diabetes, often called prediabetes. In this condition, glucose levels are higher than normal but not yet in the diabetic range. Individuals with impaired glucose tolerance do not have diabetes, and annually, only 1-5% of those with this condition progress to diabetes. Furthermore, after retesting, up to half of the individuals with impaired glucose tolerance find their results return to normal. Engaging in weight loss and regular exercise can help normalize glucose levels. With lifestyle changes such as diet and exercise, up to 60% of people can either avoid developing diabetes or significantly delay its onset. For more information, refer to the oral glucose tolerance test.

Medical Definition & Meaning