A Continuous Glucose Monitor (CGM) is a small, wearable device that tracks your blood sugar levels in real-time, providing a constant stream of data about how your body responds to the food you eat, your exercise, and other lifestyle factors. While traditionally used by individuals with diabetes, CGMs are increasingly being adopted by health-conscious individuals who want to optimize their metabolic health.
Medically Reviewed: All clinical information on this page has been reviewed for accuracy by Dr. Jane Doe, MD.
How Does a CGM Work?
A CGM works by inserting a tiny sensor under your skin, usually on your arm or abdomen. This sensor measures the glucose in the fluid between your cells (interstitial fluid) every few minutes. A transmitter sends this information wirelessly to a receiver or a smartphone app, so you can see your glucose levels at a glance.
Who Can Benefit from a CGM?
While CGMs are essential for many people with diabetes, they can also be a valuable tool for anyone who wants to:
- Understand how different foods affect their blood sugar.
- Optimize their exercise routine for better glucose control.
- Take a proactive approach to preventing chronic diseases.