What is normal HbA1c by age?

This question is about Nutrition

Sarah Achleithner

There is no normal HbA1c by age, as the range remains the same regardless of how old you are.

HbA1c status is classified as follows [



  • Normal: < 5.7%

  • Prediabetes: between 5.7% and 6.4%

  • Diabetes: > 6.5%

HbA1c is most often used to diagnose pre-diabetes and diabetes and monitor the effectiveness of interventions to manage blood sugar. Symptoms of pre-diabetes and diabetes often can go undetected, and it’s beneficial to know your A1c level even if you’re not at high risk for developing these conditions.  

Here are some lifestyle changes to help lower your HbA1c levels [



  • Eat a balanced diet of protein (try

    Smart Protein

    to help meet your needs), carbohydrates, and fats.

  • Aim for 150 minutes of moderate physical activity per week (about 30 minutes, 5 days per week).

  • Limit refined carbohydrates and added sugar, and choose whole foods such as whole grains, fruits, vegetables, legumes, and nuts.

  • Lose excess weight if you are overweight or obese.

  • Follow your diabetes treatment plan if you have been diagnosed with diabetes.

Some common diabetes medications include [



  • Insulin

  • Glucagon-like peptide 1 (GLP-1)

  • Metformin

  • Sulfonylureas

  • Thiazolidinediones (TZDs)

While medications may be recommended for some, you can also consider certain

GLP-1 supplements to help manage blood sugar

. Talk with your healthcare provider to see which option is right for you.

blood sugar patch


  1. U.S. National Library of Medicine. (n.d.). Hemoglobin A1C (hba1c) test: Medlineplus medical test. MedlinePlus.



  2. MediLexicon International. (n.d.). Reduce your A1C levels: Lifestyle, diet, and Nutrition. Medical News Today.



  3. What are my options for type 2 diabetes medications?. What Are My Options for Type 2 Diabetes Medications? | ADA. (n.d.).