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What fasting blood sugar result is in the diabetes range?

126 mg/dL or higher on a fasting test.

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  1. 126 mg/dL or higher ✔
  2. 100 mg/dL or higher
  3. 90 mg/dL or higher

Why: On a fasting test, 126 mg/dL or higher points to diabetes, 100 to 125 is prediabetes, and under 100 is normal. Fasting means nothing but water for at least 8 hours.

Huh, didn't know that: The fasting test is usually done first thing in the morning, before breakfast.

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What do sprinters eat before a race? Nothing, they fast.
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References

Answer: 126 mg/dL or higher. On a fasting test, 126 mg/dL or higher points to diabetes, 100 to 125 is prediabetes, and under 100 is normal. Fasting means nothing but water for at least 8 hours.

  1. ADA, Diabetes Diagnosis diabetes.org/about-diabetes/diagnosis
    Diabetes is diagnosed at fasting blood glucose of greater than or equal to 126 mg/dl
    Checked 2026-10-09.

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