what is the normal range for glucose

The normal range for blood glucose levels varies depending on the type of test and whether you have eaten recently. 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

• Random Blood Glucose (taken at any time):

  • Normal: Less than 140 mg/dL
  • Prediabetes/Dia betes: 200 mg/dL or higher (with symptoms of diabetes)

• 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 may vary slightly depending on the laboratory or healthcare provider. Always consult your doctor for personalized advice.