Question

Normal glucose levels

Answer 1

Normal glucose levels can vary based on when the test is conducted (fasting, postprandial, etc.) and individual health conditions. Here are general guidelines:

1. **Fasting Blood Glucose** (after fasting for at least 8 hours):
- Normal: Less than 100 mg/dL (5.6 mmol/L)
- Prediabetes: 100–125 mg/dL (5.6–6.9 mmol/L)
- Diabetes: 126 mg/dL (7.0 mmol/L) or higher on two separate tests

2. **Postprandial Blood Glucose** (2 hours after eating):
- Normal: Less than 140 mg/dL (7.8 mmol/L)
- Prediabetes: 140–199 mg/dL (7.8–11.0 mmol/L)
- Diabetes: 200 mg/dL (11.1 mmol/L) or higher

3. **Random Blood Glucose**:
- Diabetes is diagnosed if a random blood glucose level is 200 mg/dL (11.1 mmol/L) or higher, along with symptoms of high blood sugar.

4. **Hemoglobin A1c** (a measure of average blood glucose over the past 2-3 months):
- Normal: Less than 5.7%
- Prediabetes: 5.7%–6.4%
- Diabetes: 6.5% or higher

Always consult with a healthcare professional for personalized information and advice regarding blood glucose levels.