Should People Without Diabetes Use a Continuous Glucose Monitor (CGM)?

A CGM is a small device that sticks to the body and measures the glucose levels in the interstitial fluid between your cells just below your skin, 24 hours per day, with a Bluetooth transmitter sending the data to your smartphone or a receiver. This sensor gives a complete picture of your blood sugar changes and patterns, sending data every 5 to 15 minutes, and users can easily see the effect of their food and exercise choices. Once only available with a prescription, CGMs are more accessible than ever now that the two leading manufacturers have released over-the-counter versions of their sensors.