Continuous glucose monitors can spot the early signs of type 2 diabetes, a recent study has underscored.

Academics from the University of Tokyo have revealed that wearable glucose monitors are more effective than standard blood tests at detecting early type 2 diabetes.

Detecting impaired glucose regulation early can combat or slow down the development of type 2 diabetes, research has indicated.

Senior author Professor Shinya Kuroda said: “Traditional diabetes tests, while useful, do not capture the dynamic nature of glucose regulation under physiological conditions.”

As part of the trial, the team of researchers used a continuous glucose monitoring (CGM) device, oral glucose tolerance tests (OGTT) and clamp tests to examine the health outcomes of 64 adults, all of whom entered the study without a prior type 2 diabetes diagnosis.

They found that they could predict the participant’s future type 2 diabetes risk by assessing their AC_Var – a measure of glucose-level fluctuations.

According to the researchers, analysing AC_Var is a more effective early type 2 diabetes detection tool than OGTT, fasting blood glucose tests and HbA1c tests.

Professor Kuroda said: “By analysing CGM data with our new algorithm, we identified individuals with impaired glycaemic control – even when standard diagnostic tests classified them as normal.

“This means we can potentially detect issues much earlier, creating an opportunity for preventive interventions before diabetes is diagnosed.”

Professor Kuroda concluded: “Our ultimate goal is to provide a practical, accessible tool for widespread diabetes screening.

“By enabling early detection of glucose regulation abnormalities, we hope to prevent or delay disease onset and reduce long-term complications.”

The study was published in the journal Communications Medicine.

Get our free newsletters

Stay up to date with the latest news, research and breakthroughs.