The notes record 600 g of fried noodles with chicken plus “eight treasures” with rice, estimated at 140 g carbohydrate. A pop ride, a live-DJ Madonna ride and a cooldown followed.
Why the sequence matters
The largest CGM value did not occur immediately after the meal. Glucose fell to 103 mg/dl during the early exercise phase and later reached 154 mg/dl. Delayed digestion, exercise stress and endogenous glucose supply may overlap; this single case cannot apportion them.
Not a “burn it off” message
The relatively contained curve does not mean that 140 g of carbohydrate were neutralised. CGM measures interstitial glucose, not the whole metabolic load, and there was no control day, insulin measurement or standardised portion.
A stronger repeat would need
- weighed food and photographed ingredients,
- one clearly bounded exercise session,
- at least four hours of observation,
- a no-exercise comparison only if medically appropriate.
Sources and methodological context
- American Diabetes Association, Standards of Care in Diabetes—2026: Physical activity and exercise
- Trefts et al., Exercise and the Regulation of Hepatic Metabolism
- Bergenstal et al., Glucose Management Indicator (GMI)
- Zaharieva et al., CGM lag during aerobic exercise
- Emhoff et al., Gluconeogenesis and hepatic glycogenolysis during exercise
The values in this article come from my own sensor (FreeStyle Libre 3) and are a single-case observation (n = 1) – they show a pattern in me, not a rule for you. Every statement is labelled as established, plausible or open, and proximity in time never counts as proof of a cause. How I handle time windows, sensor lag, influencing factors and approval is collected on one page. Read the methodology