Glucose Variability
Standard deviation of glucose measurements throughout day
Why Glucose Variability matters
High variability independently predicts complications. Stable glucose associated with better metabolic health and energy.
Reference Range
Healthy adults: coefficient of variation 17% (SD 3%)
Sourced reference
Near the healthy-adult CV of 17%
Targets by source
Each position below is attributed and linked to the document that states it. Several are population percentiles or averages rather than targets; the note says which. How we verify ranges.
- Coefficient of variation 17% (SD 3%)Healthy nondiabetic participants on Dexcom G6 (Shah 2019, J Clin Endocrinol Metab; n=153)Within-person CV (SD divided by mean glucose); mean glucose was 98-99 mg/dL in most age groups.
Devices that measure this
Devices in our comparisons whose published specs list this metric:
Track Your Glucose
Monitor Glucose Variability with wearables and health tracking devices
Health Disclaimer
This information is for educational purposes only. Consult a healthcare provider for personalized health recommendations.
Last reviewed Sep 23, 2026 · First published Oct 1, 2025