What Is Prediabetes?
- Having a family history of diabetes
- Having high blood pressure, high cholesterol, or high triglycerides
- Having a sedentary lifestyle
- Belonging to certain ethnic groups (Hispanic American, Asian American, Pacific Islander, Native American, or African American)
- History of gestational diabetes or giving birth to a baby weighing more than 9 pounds (4 kilograms)
- History of cardiovascular disease
- Having a condition associated with insulin resistance (eg, polycystic ovary syndrome)
How Do You Know If You Have Prediabetes?
- Fasting plasma glucose test—For this test, you fast overnight and have your blood glucose measured in the morning before eating. Results in the range of 100-125 mg/dL (5.6-6.9 mmol/L) indicate prediabetes.
- Oral glucose tolerance test —Again, you fast overnight and have your blood glucose measured after the fast. Then, you consume a sugary drink and have your blood glucose measured two hours later. Results in the range of 140-199 mg/dL (7.8-11 mmol/L) indicate prediabetes.
- Hemoglobin A1c (HbA1c) — This is an indicator of your average blood sugar levels over the previous three months. Results in the range of 5.7%-6.4% indicate prediabetes.
What Can You Do If You Have Prediabetes?
How Can You Prevent Prediabetes?
- Lose weight
- Exercise for at least 150 minutes per week
- Reduce your intake of calories and fat—Also, try to eat more fiber and whole grains.
American Diabetes Association http://www.diabetes.org/
National Diabetes Education Program http://www.ndep.nih.gov/
Canadian Diabetes Association http://www.diabetes.ca/
Canadian Family Physician http://www.cfpc.ca/
Am I at risk for type 2 diabetes? Taking steps to lower the risk of getting diabetes. National Diabetes Information Clearinghouse website. Available at: http://diabetes.niddk.nih.gov/dm/pubs/riskfortype2/risk.pdf. Accessed July 12, 2012.
American Diabetes Association and National Institute of Diabetes, Digestive and Kidney Diseases. The prevention or delay of type 2 diabetes. Diabetes Care 2002;25:1-8.
Diabetes Prevention Program Research Group. Reduction in the incidence of type 2 diabetes with lifestyle intervention or Metformin. NEJM. 2002;346:393-403.
Diabetes mellitus type 2 prevention. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/. Updated June 12, 2012. Accessed May 18, 2011.
Prediabetes. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/. Updated July 2, 2012. Accessed July 12, 2012.
Kanaya AM, Narayan KM. Prevention of type 2 diabetes: Data from recent trials. Primary Care 2003;30:511-526.
Prediabetes FAQ. American Diabetes Association website. Available at: http://www.diabetes.org/diabetes-basics/prevention/pre-diabetes/pre-diabetes-faqs.html. Accessed July 12, 2012.
Narayan K, Imperatore G. Targeting people with prediabetes. British Medical Journal. 2002;325:403-404.
Nathan DM. Diabetes Care . 2007;30:753.
Sartor G, Schersten B, Carlström S, et al. Ten-year follow-up of subjects with impaired glucose tolerance: prevention of diabetes by tolbutamide and diet regulation. Diabetes . 1980; 29:41.
Staphanie B, Valdez R. Estimated number of adults with prediabetes in the US in 2000: Opportunities for prevention. Diabetes Care. 2003;26:645-649.
Tuomilehto J, Lindstorm J. Prevention of type 2 diabetes mellitus by changes in lifestyle among subjects with impaired glucose tolerance. N Engl J Med 2004;344:1343-1350.
Webster’s New World Medical Dictionary . Foster City, CA: IDG Books Worldwide, Inc; 2000.
10/21/2008 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed/what.php : Greaves CJ, Middlebrooke A, O'Loughlin L, et al. Motivational interviewing for modifying diabetes risk: a randomised controlled trial. Br J Gen Pract. 2008;58:535-540.
10/12/2009 DynaMed Systematic Literature Surveillance DynaMed's Systematic Literature Surveillance : Crandall JP, Polsky S, Howard AA, et al. Alcohol consumption and diabetes risk in the Diabetes Prevention Program. Am J Clin Nutr. 2009;90:595-601.
2/15/2010 DynaMed's Systematic Literature Surveillance DynaMed's Systematic Literature Surveillance: American Diabetes Association. Standards of medical care in diabetes—2010. Diabetes Care. 2010;33(suppl 1:S11-61).
2/15/2010 DynaMed's Systematic Literature Surveillance DynaMed's Systematic Literature Surveillance: American Diabetes Association. Diagnosis and classification of diabetes mellitus. Diabetes Care. 2010;33(suppl 1:S62-69).
- Reviewer: Brian Randall, MD
- Review Date: 07/2012 -
- Update Date: 07/12/2012 -