Continuous glucose monitor

A Continuous Glucose Monitor (CGM) is a compact medical wearable device designed to track glucose (sugar) levels around the clock. Unlike traditional finger-prick meters that provide a single snapshot in time, a CGM provides a dynamic, real-time stream of data. It consists of a small, disposable sensor with a tiny filament that sits just under the skin (typically on the back of the arm or abdomen), a transmitter that sends data wirelessly, and a receiver or smartphone app that displays glucose trends and alerts. While historically reserved for clinical diabetes management, newer FDA-cleared over-the-counter (OTC) versions are now available for metabolic health optimization and wellness.