What Are Healthy Hemoglobin A1c Levels?


Quick Answer

Healthy people who do not have diabetes have a normal level for hemoglobin A1c that is below 5.7 percent. The range for pre-diabetes is between 5.7 and 6.4 percent, while a level that is higher than 6.5 can be an indication of diabetes, states the National Institutes of Health's MedlinePlus.

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Full Answer

The hemoglobin A1c test is used to detect the level of blood sugar level over a 3-month period. The test can also be useful for diagnosing diabetes or monitoring how well a patient is controlling the disease. Patients who have a hemoglobin A1c level that is 8 percent or over may have uncontrollable diabetes, notes Mayo Clinic.

Diabetes is a serious condition that can lead to many other health issues. When A1c levels are very high, it can also increase a person's risk factor for other health issues, including cardiovascular and renal disease.

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