Continuous Glucose Monitoring (CGM)
Subcutaneous interstitial glucose sensors that provide near-continuous (every 1-5 min) glucose readings, used clinically in diabetes management and increasingly in research and consumer wellness.
Also: CGM
CGM enables Time in Range (TIR; typically 70-180 mg/dL goal) as a complement to HbA1c. Sensors have improved accuracy to MARD <10% versus reference. Research applications include characterization of postprandial glycemia, glycemic variability, and individual responses to identical meals (Zeevi et al., Cell 2015), an empirical foundation for precision nutrition. Consumer CGM use in non-diabetics outpaces clinical evidence of benefit.
How one textbook covers it
Modern Nutrition in Health and Disease, 12th ed. — Ch 63: Nutrition Management of Diabetes
CGM enables Time in Range (TIR; typically 70-180 mg/dL goal) as a complement to HbA1c. Sensors have improved accuracy to MARD <10% versus reference. Research applications include characterization of postprandial glycemia, glycemic variability, and individual responses to identical meals (Zeevi et al., Cell 2015), an empirical foundation for precision nutrition. Consumer CGM use in non-diabetics outpaces clinical evidence of benefit.
Related terms
Diabetes, HbA1c, Precision nutrition