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What You Need to Know About Prediabetes

If you are 45 years old or older, overweight, and inactive, you may have prediabetes. So what is prediabetes, anyway?

Prediabetes means the amount of glucose, also called sugar, in your blood is higher than normal but not high enough to be called diabetes. Glucose is a form of sugar your body uses for energy. Too much glucose in your blood can damage your body over time. If you have prediabetes, also called impaired fasting glucose (IFG) or impaired glucose tolerance (IGT), you are more likely to develop type 2 diabetes [1], heart disease, and stroke [2] .

How will I know if I have prediabetes?

Most people with prediabetes don't have any symptoms. Your doctor can test your blood to find out if your blood glucose levels are higher than normal.

Who should be tested to see if they have prediabetes?

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If you are 45 years old or older, your doctor may recommend that you be tested for prediabetes, especially if you are overweight. Being overweight is a key contributor, along with inactivity, to prediabetes. If your body mass index [3] (BMI) is higher than 25, you are overweight. BMI is a measure of your weight relative to your height (calculate your BMI [3]). If you're not sure if you are overweight, ask your doctor.

If you are younger than 45, you should consider getting tested for prediabetes if you are overweight and...

If your test results are normal, you should be retested in 3 years. If you have prediabetes, ask your doctor if you should be tested again in 1 year.

What You Can Do About Prediabetes