What is GTT?
Glucose tolerance test measures how your body processes glucose. After eating some sugary food, you may have a higher level of sugar in the blood for an extended period of time than before eating. If this has been happening on and off over time, then it could be that there’s something else going on with their health like diabetes or prediabetes. In such conditions, obesity or overweight which leads to insulin resistance so they cannot absorb more carbohydrates into cells easily causing high levels after meals especially those containing lots starchy carbs.