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Understanding HbA1c in Our Diabetes Blood Test

Diabetes is a chronic condition that affects millions of people worldwide, impacting how their bodies process glucose. Proper management of diabetes is essential to prevent complications such as heart disease, kidney damage and disease, and nerve damage. A key tool in diabetes management is the HbA1c test, which measures average blood sugar levels over the past two to three months.


At One Day Tests, we understand the importance of accessible and accurate health monitoring. Our Diabetes Blood Test, including HbA1c testing, can be conveniently conducted through our home test kits or at our clinics. Our state-of-the-art laboratory ensures quick and reliable results, empowering you to make informed decisions about your diabetes management.

Diabetes consultation

What is HbA1c?

HbA1c, or glycated haemoglobin, is a form of haemoglobin that is chemically linked to glucose. The HbA1c test measures the percentage of haemoglobin that is glycated, providing an average blood glucose level over the past two to three months. This test is crucial for diabetes management because it helps assess how well blood sugar levels are being controlled over time. Regular monitoring of HbA1c levels can guide treatment adjustments and help reduce the risk of diabetes-related complications.

What is the Normal Range of HbA1c?

Normal Range for Non-Diabetics


For individuals without diabetes, the typical HbA1c level ranges between 20 mmol/mol (4%) and 41 mmol/mol (5.9%). Maintaining an HbA1c within this range indicates good blood sugar control and a lower risk of developing diabetes-related complications.


Target Range for Diabetics


The HbA1c target for people with diabetes to aim for is: 48 mmol/mol (6.5%). This target helps manage the condition effectively and reduces the risk of complications such as heart disease, nerve damage, and kidney problems. However, individual targets may vary based on age, health conditions, and personal health goals.


At Risk of Type 2 Diabetes


For individuals at risk of developing Type 2 diabetes, there are specific target HbA1c levels to help manage and reduce this risk. If you have been identified as at risk, your target HbA1c level should be below 42 mmol/mol (6%). Maintaining this lower HbA1c level can help prevent the progression to full-blown diabetes and encourage better overall health management.


HbA1c Levels for Older People


As people age, their target HbA1c levels may be adjusted by their diabetes healthcare team. This adjustment is made because the risks of maintaining a strict target of 48 mmol/mol (6.5%) might outweigh the benefits for older adults. For instance, the risk of harm from falls due to low blood sugar levels can be greater than the long-term risks associated with slightly higher blood sugar levels.

Diabetes monitor and vegetables

What is the Normal HbA1c for My Age?

As you age, your HbA1c targets may change to better suit your health needs. This adjustment is crucial because the risks associated with maintaining very low HbA1c levels can sometimes outweigh the benefits for older adults. For example, older individuals are at a higher risk of hypoglycemia (low blood sugar), which can lead to falls and other serious health issues. Therefore, the diabetes healthcare team may recommend slightly higher HbA1c targets to balance the overall health risks and benefits.


Here are some general guidelines for HbA1c targets based on age:


  • Younger Adults (20-39 years): The typical target HbA1c level is around 48 mmol/mol (6.5%) or less. Maintaining this level helps in managing blood sugar effectively and preventing long-term complications associated with diabetes.

  • Middle-Aged Adults (40-59 years): For this age group, the target HbA1c is usually between 42 mmol.mol (6.0%) and 53 mmol/mol (7.0%). This range helps balance the management of blood sugar levels while reducing the risk of hypoglycemia and other related health issues.

  • Older Adults (60 years and older): As people age, their target HbA1c levels may be increased by their diabetes healthcare team. For healthy older adults, a target HbA1c of less than 58 mmol/mol (7.5%) is often recommended. Those with intermediate health may aim for less than 64 mmol/mol (8.0%), while older adults with poor health might have a target of less than 69 mmol/ml (8.5%).

Can HbA1c Be Too Low?

While maintaining a low HbA1c level is generally beneficial for preventing diabetes complications, it is possible for HbA1c to be too low, which can pose significant health risks. HbA1c levels that are too low may indicate frequent episodes of hypoglycaemia (low blood sugar).


Risks of Low HbA1c


  • Hypoglycaemia: Frequent low blood sugar levels can cause a range of symptoms from sweating and dizziness to severe issues like seizures and loss of consciousness. Hypoglycaemia unawareness, where the body no longer shows symptoms of low blood sugar, can be particularly dangerous as it prevents early detection and correction of low glucose levels.

  • Health Complications: Chronic low HbA1c can indicate overly aggressive blood sugar management, which may increase the risk of severe hypoglycaemia and associated complications. Ensuring balanced blood sugar control is essential to avoid these risks.
Diabetes and stethoscope

Importance of Balanced Blood Sugar Control

Maintaining an appropriate HbA1c level is crucial for managing diabetes effectively. The American Diabetes Association recommends a general target HbA1c of less than 7% for most adults with diabetes. However, this target may be adjusted based on individual health conditions and risks.


Consulting with a healthcare provider is essential to determine the most appropriate HbA1c target for your specific health needs. Regular monitoring and adjusting your diabetes management plan can help maintain optimal blood sugar levels and prevent both high and low extremes.

The Diabetes HbA1c Blood Test from One Day Tests

The Diabetes (HbA1c) Blood Test is a crucial tool in diabetes management, providing an average blood glucose level over the past two to three months. This test measures the amount of glucose bound to haemoglobin in red blood cells, offering a comprehensive view of long-term blood sugar control.


One Day Tests offers flexibility with home test kits, home visits and clinic phlebotomy appointments. This ensures that you can choose the most convenient method for you. Samples are processed in our state-of-the-art, CQC-regulated laboratory. Results are delivered promptly, allowing you to take timely actions based on your HbA1c levels.

Our Diabetes Blood Tests

Take Control of Your Diabetes Management

Managing diabetes effectively requires regular monitoring and proactive adjustments to your health plan. The Diabetes HbA1c Blood Test is a crucial tool in this process, providing a comprehensive overview of your long-term blood sugar control. By understanding and regularly testing your HbA1c levels, you can take significant steps towards preventing complications and improving your overall health.


Take control of your diabetes management with the Diabetes HbA1c Blood Test from One Day Tests. Our convenient home test kits and clinic appointments ensure that you can monitor your health with ease and accuracy. Empower yourself with the knowledge to make informed decisions about your health and stay on top of your diabetes management.

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