Community Answer

Answered by Dr. Emily Carter, MD

The normal blood sugar range for adults varies depending on whether the measurement is taken fasting or after eating. Here are the general guidelines:

  • Fasting Blood Sugar (before eating): 70–99 mg/dL (3.9–5.5 mmol/L)
  • Postprandial Blood Sugar (1–2 hours after eating): Less than 140 mg/dL (7.8 mmol/L)
  • A1C Test (average over 2–3 months): Below 5.7%

These ranges may vary slightly depending on individual health conditions and guidelines from different medical organizations. Always consult with a healthcare provider for personalized advice.

Last updated: 1/12/2025

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