Community Answer

Answered by Dr. Emily Carter, MD

Fasting blood sugar (FBS) levels are used to diagnose diabetes and prediabetes. Here are the standard ranges:

  • Normal: Less than 100 mg/dL
  • Prediabetes: 100 to 125 mg/dL
  • Diabetes: 126 mg/dL or higher on two separate tests

Fasting blood sugar is measured after not eating or drinking anything (except water) for at least 8 hours. If your levels are in the prediabetes or diabetes range, consult your healthcare provider for further evaluation and management.

Last updated: 11/16/2024

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