what is normal blood sugar for fasting
Asked by: HealthCurious
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Community Answer
Answered by Dr. Emily Carter, MD
Normal fasting blood sugar levels are typically in the following range:
- Normal: 70 to 99 mg/dL (3.9 to 5.5 mmol/L)
- Prediabetes: 100 to 125 mg/dL (5.6 to 6.9 mmol/L)
- Diabetes: 126 mg/dL (7.0 mmol/L) 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 fasting blood sugar is consistently outside the normal range, it may indicate prediabetes or diabetes, and you should consult a healthcare professional for further evaluation.