Guest Column: What Wearable Glucose Monitors Miss in Continuous Health Tracking

The growing popularity of continuous glucose monitors (CGMs) among people without diabetes has sparked increasing scrutiny from health researchers, who warn that the devices may offer little benefit for metabolic health in this population and could lead to unnecessary anxiety or misinterpretation of data.

According to a guest column published in The Washington Post by a researcher who studies wearable health data, constant glucose tracking does not reliably help individuals make better health decisions and can instead create confusion, particularly for those without diabetes. The author emphasizes that while CGMs have transformed diabetes care by providing real-time insights into blood sugar trends, their value for people with normal glucose regulation remains unproven.

This perspective is supported by recent findings cited in major news outlets. A report from the Associated Press noted that despite rising popularity fueled by celebrity endorsements and marketing claims, there is “scant evidence” that CGMs improve health outcomes for people with normal blood sugar levels. The devices, which measure glucose in interstitial fluid as a proxy for blood sugar, are being promoted as tools for optimizing diet, exercise, and lifestyle—but experts caution that such interpretations may be misleading without proper clinical context.

April 26, 2026