What is the normal range for hemoglobin A1C levels?

The normal range for hemoglobin A1C levels is considered to be 4-6%. This measurement provides an indication of average blood glucose levels over the preceding two to three months. Maintaining A1C levels within this range is crucial for individuals without diabetes to reduce the risk of developing diabetes-related complications.

An A1C level of less than 5.7% is classified as normal, while 5.7% to 6.4% indicates prediabetes, and 6.5% or higher is reflective of diabetes. Hence, the range of 4-6% is important for diagnosing and monitoring individuals for diabetes, along with helping to manage those who already have the condition.