A person with prediabetes has a blood sugar level higher than normal, but not high enough for a diagnosis of diabetes. He or she is at higher risk for developing Type 2 diabetes and other serious health problems, including heart disease, and stroke. Without lifestyle changes to improve their health, 15% to 30% of people with prediabetes will develop Type 2 diabetes within five years.

  • Prediabetes is when your blood sugar level is higher than normal but not high enough yet to be diagnosed as type 2 diabetes.
  • 86 million American adults (more than 1 in 3 adults) have prediabetes.
  • 9 out of 10 people with prediabetes do not know they have it.
  • When a person has prediabetes, they're on the path to developing type 2 diabetes, and are also at increased risk for serious health problems such as stroke and heart attack.
  • The good news is that prediabetes can be reversed. The sooner a person is diagnosed and takes action, the more likely they'll be able to reverse it and prevent or delay the onset of type 2 diabetes.

Clinical Definition of Prediabetes

There are no clear symptoms of prediabetes, so, you may have it and not know it. Results indicating prediabetes are:

A1C 5.7% – 6.4%
Fasting blood glucose Between 100 – 125 mg/dL
Oral Glucose Tolerance Test (OGTT) 2 hour blood glucose 140 mg/dL – 199 mg/dL

Risk Factors

  • Being overweight
  • Not getting enough physical activity
  • Getting older
  • Family history of Type 2 diabetes
  • Membership in a racial or ethnic minority group
  • Polycystic ovarian syndrome
  • Sleeping too much or too little
  • Having metabolic syndrome (high blood pressure, high blood sugar and high cholesterol) or having even one of these symptoms
  • Having history of gestational diabetes or delivering a baby weighing 9 pounds or more

Preventing Type 2 Diabetes

Research shows that you can lower your risk for Type 2 diabetes by 58% by:

Don't worry if you can't get to your ideal body weight. Losing even 10 to 15 pounds can make a difference. Interested in learning more about improving self-management skills? Check out the information we have for the evidence-based lifestyle change program, National Diabetes Prevention Program.

Prediabetes Resources

Wondering if you have prediabetes? The CDC has a test available to help you assess your risk It's fast, it's easy, and it could help you avoid type 2 diabetes.

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