HbA1c, sometimes called “glycated hemoglobin” is a marker of diabetes risk. Blood levels of HbA1c reflect your average amount glucose levels over the past three months. A normal level of HbA1c is below 5.7%. HbA1c between 5.7 and 6.4% may indicate prediabetes and greater than 6.5% may indicate diabetes. If you have diagnosed diabetes, the American Diabetes Association recommends keeping HbA1c below 7%, but you should discuss optimal levels for you with your provider.