CGMs are gaining popularity beyond diabetes management, and may potentially have benefits for people without the condition. Though research is promising, it’s still in its early stages.
A CGM is a small wearable device that tracks glucose levels throughout the day and night.
Unlike finger-prick tests, which give a single reading, CGMs provide continuous data and show how glucose levels change over time. This means you can see how your body responds to certain factors in real time.
Although CGMs are mostly used by people with diabetes, they are also being explored for broader health and wellness use.
Interest in CGM among people without diabetes is growing, largely due to the rise in personalized health trackers. Many people want to better understand how their daily habits, including
Potential benefits of using CGMs include:
- tracking how different foods impact blood glucose levels
- monitoring the effects of exercise, sleep, and stress
- exploring early signs of metabolic risk
- adjusting diet or lifestyle based on real-time feedback
Research is in the early stages. However, a small 2021 pilot study suggests that CGM could help motivate people with overweight as a person can see the immediate effects on their blood glucose.
Another 2022 review highlights the following potential uses for CGM other than diabetes:
- metabolic diseases other than diabetes
- non-metabolic diseases
- health and wellness
- elite athletics
While these uses are promising, most are still being studied, and strong evidence for long-term benefits in non-diabetics is currently limited.
Additionally, current research shows only associations, not cause-and-effect. More research must be done in this area to determine the uses of CGM for people without diabetes and how results may be interpreted.
Currently, CGM is not a replacement for medical testing. Standard tests like HbA1c and fasting glucose remain the main diagnostic tools for diabetes.
Using CGMs if you don’t have diabetes also comes with some risks, including:
- misinterpreting the readings
- experiencing anxiety about normal glucose changes
- over-restricting certain foods
- becoming overly focused on the numbers
It’s important to use CGMs cautiously. Most people without diabetes do not need to monitor their blood glucose levels.
Check in with a doctor if you think you may have signs of diabetes.
If you choose to use a CGM without diabetes, the following tips can help you get the most value without leading to unnecessary stress.
- Focus on overall patterns rather than single spikes.
- Use the device for a limited period, such as a few weeks.
- Avoid making major dietary changes based on short-term data.
- Combine CGM insights with standard health tests.
- Seek guidance from a healthcare professional.
Used with caution, CGM may support awareness and behaviour change.
CGMs offer real-time data on blood sugar levels. It’s possible they might have uses for people without diabetes in the future. However, the research is still in the early stages.
If you do choose to use a CGM, make sure you’re aware of the limitations and risks and avoid making large changes to your diet or lifestyle based on results.
Standard tests performed by a healthcare professional remain the only way to determine whether your blood glucose levels are abnormal.