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Diabetes: Blood Sugar Levels - Topic Overview

Keeping your blood sugar in a target range reduces your risk of problems such as diabetic eye disease (retinopathy), kidney disease (nephropathy), and nerve disease (neuropathy).

The American Diabetes Association (ADA) and American Academy of Pediatrics (AAP) suggest the following A1c and blood glucose ranges as a general guide.1, 2, 3

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  • Children of any age with type 2 diabetes and most adults with type 1 or type 2 diabetes (non-pregnant)
    • A1c: Less than 7.0%
    • Before meals: 70 to 130 milligrams per deciliter (mg/dL)
    • 1 to 2 hours after meals: Less than 180 mg/dL
  • Women with type 1 or type 2 diabetes who become pregnant
    • A1c: Less than 6.0%
    • Before meals, bedtime, and overnight: 60 to 99 mg/dL
    • 1 to 2 hours after meals: 100 to 129 mg/dL or lower
  • Women who have gestational diabetes
    • Before meals: 95 mg/dL or less
    • 1 to 2 hours after meals: 120 to 140 mg/dL or lower
  • Adolescents and young adults with type 1 diabetes (13 to 19 years old)
    • A1c: Less than 7.5%
    • Before meals: 90 to 130 mg/dL
    • Bedtime and overnight: 90 to 150 mg/dL
  • School-age children with type 1 diabetes (6 to 12 years old)
    • A1c: Less than 8.0%
    • Before meals: 90 to 180 mg/dL
    • Bedtime and overnight: 100 to 180 mg/dL
  • Toddlers and preschoolers with type 1 diabetes (under 6 years old)
    • A1c: Less than 8.5%
    • Before meals: 100 to 180 mg/dL
    • Bedtime and overnight: 110 to 200 mg/dL

Some people can work toward lower numbers, and some people may need higher goals.

For example, some children and adolescents with type 1 or type 2 diabetes, people who have severe complications from diabetes, people who may not live much longer, or people who have trouble recognizing the symptoms of low blood sugar may have a higher target range.

And some people, such as those who are newly diagnosed with diabetes or who don't have any complications from diabetes, may do better with a lower target range.

Work with your doctor to set your own target blood sugar range. This will help you achieve the best control possible without having a high risk of hypoglycemia.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: June 24, 2013
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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