Community Answer

Answered by Dr. Emily Carter, MD 🩺

High hemoglobin A1C levels are primarily caused by prolonged elevated blood sugar levels. Here are some common factors that can contribute to high A1C:

  • Diabetes or Prediabetes: Uncontrolled diabetes or prediabetes is the most common cause of high A1C levels.
  • Insulin Resistance: Conditions like obesity or metabolic syndrome can lead to insulin resistance, causing higher blood sugar levels.
  • Diet: Consuming a diet high in refined carbohydrates and sugars can spike blood sugar levels over time.
  • Lack of Physical Activity: Sedentary lifestyles can contribute to poor blood sugar control.
  • Medications: Certain medications, such as steroids, can increase blood sugar levels.
  • Other Health Conditions: Conditions like kidney disease, liver disease, or anemia can affect A1C accuracy.

If you have a high A1C, it's important to work with your healthcare provider to identify the underlying cause and develop a management plan.

Last updated: 1/12/2025

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