Prediabetes is a very common condition. Also known as "impaired glucose tolerance," this is a concerning condition. I would recommend that you discuss this with your primary care doctor
to address this situation.
Prediabetes is a condition in which patients are at risk for progression to frank diabetes. Firstly, it is known that people with prediabetes are at themselves not at increased risk for complications of diabetes -- it is simply their risk for progression to diabetes. It is diagnosed either with the random glucose level, or more commonly now with the glycosylated hemoglobin level, or hemoglobin A1c.
As for what to do, it is important to aggressively treat prediabetes to avoid progression to diabetes. The most important factor is weight. The best way to treat diabtes is to drop some weight -- diet and exercise are very important factors for this. As you age, this become more difficult, so working with your primary care doctor and potentially a dietician
will be important. There are some people who think that starting diabetes medicines (like metformin) for people with prediabetes can help -- but the data do not support this and currently we do not recommend starting medicine. The other important consideration is to have close follow up to ensure you do not progress to real diabetes.
Talk to your doctor. Weight loss
is now very important for your health. Good luck!