what is hemoglobin a1c level

Hemoglobin A1C (HbA1c) is a blood test that measures your average blood sugar levels over the past 2 to 3 months. It is commonly used to diagnose and monitor diabetes and prediabetes. Here’s what the results mean:

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

The test works by measuring the percentage of hemoglobin (a protein in red blood cells) that is coated with sugar. Since red blood cells regenerate every 3 months, the A1C test provides a long-term view of blood sugar control.

For people with diabetes, the goal is typically to keep the A1C level below 7%, though this may vary based on individual health conditions.