Last Updated: April 6, 2021

HbA1c (glycated hemoglobin) is a biomarker of glucose metabolism — it reflects glucose levels over months. Higher HbA1c is associated with more disease progression and comorbidities in states of insulin resistance or diabetes.

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Hemoglobin A1c (HbA1c) represents the percentage of red blood cells that are glycated (i.e., glucose-bound). HbA1c can give an idea of a person’s average sugar levels over the past 3 months (the approximate lifespan of a red blood cell).

Examine Database: HbA1c
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