FBS Tomorrow
PERSONAL GLUCOSE FORECAST
On-device
YOUR DAILY OUTLOOK

One day ahead.

Estimate tomorrow morning's fasting blood glucose from today's measurements and dietary intake.

MODEL · N=147
TOMORROW'S ESTIMATED FBS
—
—
mg/dL
Enter your three measurements below to see your forecast.
Today's FBS—
Tomorrow (est.)—
01 / INPUT

Today's numbers

mg/dL
Measured this morning
grams
Total consumed today
grams
Total consumed today
Your forecast updates automatically as you enter values.
02 / TRACK

Saved forecasts 0

Saved on this device only. Add your actual FBS next morning to compare it with the prediction.
No forecasts saved yet
Complete your inputs above, then tap “Save forecast.”
How the forecast is calculatedModel formula, performance and limits

This app uses your previously fitted multiple linear regression from 147 daily paired observations (March–July 2026).

Tomorrow's FBS= 20.946 + 0.5677 × today's FBS
+ 0.9601 × dietary intake (GRUs)

Dietary intake (GRUs) = carbohydrates (g) ÷ 10 + protein (g) ÷ 20. FBS values are in mg/dL.

0.521Model R²
13.9mg/dL retrospective RMSE*
147Paired observations

*Rolling time-ordered validation on 87 predictions. RMSE is average model error scale, not a patient-specific prediction interval. Results reflect an observational, single-person dataset and may change as your physiology, diet, exercise or medications change.