What is an ideal A1c level?

The ideal A1c level, which reflects average blood sugar over the past 2 to 3 months, is considered to be less than 5.7%. This level indicates that the blood glucose levels are generally well-managed and suggest good metabolic health. Levels of 5.7% or higher can indicate prediabetes or diabetes, which warrant further evaluation and monitoring (Dr. Casey Means 1).

In addition to A1c levels, Dr. Casey Means emphasizes the importance of keeping other biomarkers, such as fasting glucose (less than 100 mg/dL), triglycerides (less than 150 mg/dL), HDL cholesterol, waist circumference, and blood pressure within optimal ranges to maintain overall metabolic health (2).