what's the normal range for glucose

The normal range for blood glucose levels varies depending on whether you are fasting or have recently eaten. Here are the general guidelines:

• Fasting Blood Glucose (no food for at least 8 hours):

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

• Postprandial Blood Glucose (2 hours after eating):

  • Normal: Less than 140 mg/dL
  • Prediabetes: 140–199 mg/dL
  • Diabetes: 200 mg/dL or higher

• A1C Test (average blood glucose over 2–3 months):

  • Normal: Below 5.7%
  • Prediabetes: 5.7% to 6.4%
  • Diabetes: 6.5% or higher

These ranges are used to diagnose and monitor diabetes and prediabetes. Always consult your healthcare provider for personalized advice.