how quickly does a1c change

The A1C test reflects your average blood sugar levels over the past 2 to 3 months, as it measures the percentage of hemoglobin in your red blood cells that has glucose attached to it. Since red blood cells regenerate approximately every 3 months, significant changes in A1C levels typically take several weeks to months to become apparent.

• Rapid Changes: If you make significant lifestyle changes (e.g., diet, exercise, medication adjustments), you may see noticeable changes in your A1C within 4 to 6 weeks, but the full effect is usually seen after 3 months.
• Gradual Changes: For more gradual improvements, it may take longer to see a significant drop in A1C.

It's important to work with your healthcare provider to monitor and manage your A1C levels effectively.