Whats does IGT mean? Reviewed on 3/29/2021. Impaired glucose tolerance: A transition phase between normal glucose tolerance and diabetes, also referred to as prediabetes. In impaired glucose tolerance (IGT), the levels of blood glucose are between normal and diabetic. People with IGT do not have diabetes.
What does ight mean on Snapchat? IGHT is shorthand used in texting and online messaging that means Alright.