Normal A1C levels, which represent your average blood sugar over the past 2–3 months, can vary slightly as people get older. While a level below 5.7% is generally considered normal for most healthy adults, data indicates that the typical range may shift slightly with age.
Based on information from MedicalNewsToday, normal A1C ranges differ across various age groups. The following table outlines these ranges for all respondents within each age bracket:
| Age Group | Normal A1C Range (All Respondents) |
|---|---|
| 20–39 years | 4.0%–6.0% |
| 40–59 years | 4.1%–6.2% |
| ≥ 60 years | 4.4%–6.6% |
Source: A1C levels by age
Interpreting Age-Specific A1C Ranges
As the table illustrates, the upper boundary of what is considered a typical or normal A1C level appears to increase slightly with age. For example, an A1C of 6.1% might be outside the normal range for someone under 40, but could fall within the normal range for someone aged 40–59 or 60 and older.
It is crucial to remember that these ranges represent statistical averages for typical populations within these age groups. Individual health status, medical history, and other factors can influence what a healthy A1C is for a specific person. Always consult with a healthcare provider to understand your A1C results and what they mean for your personal health.
