what should average blood sugar be

The average blood sugar level can be estimated using the A1C test, which reflects your blood sugar levels over the past 2-3 months. Here are the general guidelines:

• Normal: Below 5.7% A1C (estimated average glucose: less than 117 mg/dL)
• Prediabetes: 5.7% to 6.4% A1C (estimated average glucose: 117–137 mg/dL)
• Diabetes: 6.5% or higher A1C (estimated average glucose: 140 mg/dL or higher)

For most people with diabetes, the target A1C is less than 7%, which corresponds to an estimated average glucose of 154 mg/dL. However, individual targets may vary based on age, health conditions, and other factors. Always consult your healthcare provider for personalized goals.