Blood Sugar Simulators
Interactive tools that let you change a dose, a meal, or a workout and watch the blood sugar curve respond.
Insulin action is invisible.
You dose, you wait, you hope you got it right. Most people with type 1 diabetes learn what actually happens through years of trial and error, some of it unpleasant.
Our simulators let you skip some of that. No account, no download, no cost. A way to build intuition about what’s happening inside your body without having to live through every version of it first.
Use them to prepare for something new, to make sense of something that already happened, or to explain your diabetes to someone who’s never had to think about it.
Understanding Insulin Types
Start here — get to know the insulins themselves: how fast each one starts, peaks, and fades.
Bolus Insulin Types
Give four bolus insulins the same meal and dose, and watch four very different curves.
Open simulatorBasal Insulin Types
See why most basal insulins don’t actually last a full 24 hours.
Open simulatorInsulin Pump Basal
Change a pump’s basal rate and see how long the new rate really takes to arrive.
Open simulatorUnderstanding Meal Boluses
Now line that insulin up with food, where timing matters as much as amount.
Understanding Exercise Management
Add movement, which shifts both your blood sugar and the insulin already working.
Exercise Timing
See how a workout lowers blood sugar, and how timing it around rapid-acting insulin changes the drop.
Open simulatorTemp Basal
Find out how far ahead of a workout to lower a pump’s basal rate.
Open simulatorExtended Exercise
Fuel and dose insulin for an effort of four hours or more, from the start through recovery.
Open simulatorAnaerobic Exercise
See why sprints and heavy lifts push blood sugar up, then down again hours later.
Open simulatorUnderstanding Daily Patterns
Finally, the rhythms that run on their own — a morning rise, a night after a workout — and then everything on one day.