What is a healthy A1C level by age? A healthy A1C level generally means maintaining an average blood sugar below 5.7%, which indicates normal glucose control over the past 2 to 3 months. However, the ideal A1C target can vary depending on a person’s age and health conditions. For children and teens with diabetes, the recommended goal is often below 7.5% to ensure good glucose control ... https://thewebhealth.com/what-is-normal-hba1c-by-age/