Managing type 2 diabetes can be challenging, especially when it comes to keeping blood sugar levels within a healthy range. A new study suggests that continuous glucose monitors, often called CGMs, may help patients achieve better blood sugar control compared with traditional finger-prick testing.
This latest research highlights how wearable glucose monitoring technology could improve diabetes management, reduce complications, and give patients more confidence in their daily health decisions.
A continuous glucose monitor is a small wearable device that tracks blood sugar levels throughout the day and night. A sensor is usually placed on the back of the upper arm or another approved area of the body.
The device continuously measures glucose levels and sends updates to a smartphone, smartwatch, or dedicated receiver. This allows users to see trends in real time and receive alerts if levels rise too high or drop too low.
Unlike finger-prick testing, which provides a single reading at one moment, CGMs give ongoing data that can help users better understand how food, exercise, sleep, stress, and medications affect blood sugar.
According to a study published in The Lancet Diabetes and Endocrinology, adults with type 2 diabetes who used a continuous glucose monitor had greater improvements in blood sugar control than those who relied on traditional finger-prick testing.
The trial included more than 300 people with type 2 diabetes. Participants were randomly divided into two groups:
Researchers observed the participants over a 32-week period.
At both 16 weeks and 32 weeks, people using CGMs had lower HbA1c levels compared with those using standard testing methods.
HbA1c is an important blood test that reflects average blood sugar levels over the previous two to three months. Lower HbA1c levels usually indicate better diabetes control and a lower risk of long-term complications.
Type 2 diabetes can lead to serious health issues if blood sugar remains too high for long periods. Poor glucose control increases the risk of:
Keeping glucose levels stable can help reduce these risks and improve quality of life.
Traditional blood sugar testing requires patients to prick their finger several times a day for a drop of blood. While useful, it only gives occasional snapshots of glucose levels.
CGMs may offer advantages such as:
Users can instantly see how meals, exercise, or medication affect blood sugar.
CGMs show whether glucose is rising, falling, or staying stable.
Many people prefer CGMs because they reduce the need for frequent finger-prick tests.
Patients may adjust meals, activity, or timing of medication based on glucose patterns.
Seeing data in real time can encourage healthier habits.
Lead researcher Emma Wilmot of the University of Nottingham said people involved in the study described CGM use as “life changing.”
Researchers also noted that in the first phase of the study, participants improved glucose control even before new medications were introduced. This suggests that simply having better glucose information helped people make meaningful lifestyle changes.
Experts from Diabetes UK also praised the findings, saying CGMs can help people balance blood sugar levels alongside eating, sleeping, and exercise.
Continuous glucose monitors are already widely used for people with type 1 diabetes. However, they have not been as commonly adopted for type 2 diabetes patients, especially those not using insulin.
This study may strengthen the case for broader CGM access for some people with type 2 diabetes. However, experts say further analysis is needed to determine cost-effectiveness and which patients would benefit most.
A CGM may be especially helpful for people with type 2 diabetes who:
A healthcare provider can help determine whether CGM use is appropriate.
As wearable health technology becomes more advanced and affordable, CGMs may play a larger role in routine diabetes care. They can empower patients with personalized data and support more precise treatment decisions.
If future studies continue to confirm these benefits, more healthcare systems may expand access to CGMs for people with type 2 diabetes.
This new research suggests that continuous glucose monitors may offer meaningful benefits for people living with type 2 diabetes. Better HbA1c results, fewer finger-prick tests, and real-time glucose insights make CGMs a promising tool for improving long-term diabetes management.
For many patients, having clearer information about blood sugar patterns could make diabetes care easier, safer, and more effective.
University of Nottingham news release, April 27, 2026 .
This article is for informational and educational purposes only. It does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional regarding diabetes care, medications, or changes to your treatment plan.
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