What We Know About Continuous Glucose Monitors in Young People With Type 2 Diabetes

Continuous glucose monitors have clear, well-documented benefits for people with Type 1 diabetes. But the story is less straightforward for young people with Type 2 diabetes. A new review published in the Journal of Paediatrics and Child Health examined what we actually know about CGM use in children and adolescents with Type 2 diabetes—and found that the evidence is still developing.

The review analyzed eight studies involving between 7 and 41 young people in each study. Researchers looked at changes in blood sugar control, what benefits users and families reported, and how CGM affected their emotional wellbeing.

Five of the studies measured two key markers of blood sugar control: HbA1c (a measure of average blood sugar over three months) and time in range (how much time someone spends with their blood sugar in a healthy target zone). Two studies showed improvements in these measures—but the improvements didn't consistently hold up over longer periods of time.

This pattern suggests that CGM alone might give young people a helpful boost at first, but maintaining those gains requires more than just having the technology.

Beyond blood sugar measurements, young people and families reported genuine improvements in daily life. Users described better lifestyle habits, easier diabetes management overall, and the convenience of checking blood sugar more frequently without finger sticks.

These practical benefits matter for quality of life, even when HbA1c numbers don't show consistent long-term change.

The review identified recurring barriers that prevent sustained CGM use. Sensor adhesion problems—where the device doesn't stick reliably to skin—came up repeatedly. Connectivity issues and concerns about wearing a device also discouraged some young people from continuing use.

These aren't minor complaints. When the technology creates frustration in daily life, young people naturally use it less, which limits any potential benefit.

The researchers conclude that CGM use in young people with Type 2 diabetes shows promise for short-term improvements and genuine day-to-day benefits, but technical and usability problems limit how well it works long-term.

Importantly, they highlight that structured diabetes education for both young people and their families is essential. Having the device isn't enough—people need support to use it effectively and overcome the challenges that come up.

More research involving larger groups of participants is needed to better understand which young people benefit most from CGM and how to design programs that keep them engaged with the technology.

Source: Journal of paediatrics and child health. Evidence type: PubMed indexed literature. Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.