What Is a CGM?
A continuous glucose monitor is a small wearable device that measures interstitial glucose levels every 1–5 minutes. Current devices like the Dexcom G7 and Abbott FreeStyle Libre 3 offer unprecedented insight into how food, exercise, sleep, and stress affect blood sugar.
Why Non-Diabetics Are Using CGMs
CGMs provide objective, personalized data about how your body responds to different foods and activities. Even among non-diabetic individuals, significant glucose variability exists and is associated with increased cardiovascular risk.
Access in Canada
CGMs are available without a prescription. The Abbott FreeStyle Libre 3 costs approximately $90–100 CAD per sensor (lasting 14 days). Several Canadian digital health companies offer CGM-based programs with dietitian support.
The Bottom Line
CGMs represent a powerful tool for understanding metabolic health. Starting with a 1–2 month trial can provide valuable baseline data and actionable insights.
