Community Answer

Answered by Dr. Emily Carter, MD

A blood sugar level of 140 mg/dL can be considered high depending on the context:

  • Fasting Blood Sugar: A fasting blood sugar level of 140 mg/dL is higher than the normal range (70–99 mg/dL) and may indicate prediabetes or diabetes.
  • Post-Meal (Postprandial): After eating, blood sugar levels can rise temporarily. A level of 140 mg/dL 1–2 hours after a meal is generally within the target range for most people with diabetes.

When to Be Concerned:

  • If your fasting blood sugar is consistently 140 mg/dL or higher, it may indicate poor blood sugar control and should be discussed with a healthcare provider.
  • For non-diabetic individuals, a fasting blood sugar of 140 mg/dL is a sign of impaired glucose tolerance or diabetes.

Next Steps:

  • Monitor your blood sugar levels regularly.
  • Consult a healthcare professional for further evaluation and management.

Last updated: 1/12/2025

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