Community Answer

Answered by Dr. Emily Carter, MD 🩺

A blood sugar level of 128 mg/dL can be interpreted differently depending on when the measurement was taken:

  • Fasting Blood Sugar: If measured after fasting (not eating for at least 8 hours), a level of 128 mg/dL is considered elevated and may indicate prediabetes or diabetes. Normal fasting blood sugar levels are typically between 70-99 mg/dL.
  • Post-Meal Blood Sugar: If measured 1-2 hours after eating, a level of 128 mg/dL is generally considered normal or slightly elevated. Post-meal blood sugar levels should ideally be below 140 mg/dL.

If you consistently see levels around 128 mg/dL, especially when fasting, it’s important to consult a healthcare provider for further evaluation and possible testing, such as an A1C test, which provides an average blood sugar level over the past 2-3 months.

Last updated: 1/12/2025

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