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SESK: Stuff Everyone Should Know · sesk.info/diab-fasting-prediabetes

What fasting blood sugar result is in the prediabetes range?

100 to 125 mg/dL.

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  1. 70 to 99 mg/dL
  2. 100 to 125 mg/dL ✔
  3. 200 to 250 mg/dL

Why: CDC's fasting blood sugar ranges: 99 or below is normal, 100 to 125 mg/dL is prediabetes, and 126 or above is diabetes.

Huh, didn't know that: A fasting test is done after not eating overnight.

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I'm on a fasting diet. I eat really fast.
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References

Answer: 100 to 125 mg/dL. CDC's fasting blood sugar ranges: 99 or below is normal, 100 to 125 mg/dL is prediabetes, and 126 or above is diabetes.

  1. NIDDK: Insulin Resistance and Prediabetes www.niddk.nih.gov/health-information/diabetes/overview/what-is-diabetes/prediabetes-insulin-resistance
    You have prediabetes if your FPG results are between 100 to 125 mg/dL (milligrams per deciliter).
    Checked 2026-10-09.

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