Community Answer

Answered by Dr. Emily Carter, MD 🩺

A blood sugar level of 120 mg/dL can be interpreted differently depending on the context:

  • Fasting Blood Sugar: If measured after fasting (not eating for at least 8 hours), a level of 120 mg/dL is slightly above the normal range (70–99 mg/dL) and may indicate prediabetes.
  • Post-Meal Blood Sugar: If measured 1–2 hours after eating, 120 mg/dL is considered within a healthy range (typically less than 140 mg/dL).

Key Points:

  • Normal Range: 70–99 mg/dL (fasting)
  • Prediabetes: 100–125 mg/dL (fasting)
  • Diabetes: 126 mg/dL or higher (fasting)

If your fasting blood sugar is consistently around 120 mg/dL, consult a healthcare provider for further evaluation and potential testing, such as an A1C test, which provides a 3-month average of blood sugar levels.

Last updated: 1/12/2025

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