Why previewing a meal beats finding out after
Once you eat and dose, you can’t undo it
After insulin is injected and food is eaten, any mismatch between the two has to be managed after the fact, not prevented. Seeing a projected curve first turns a meal into a plan instead of a live experiment.
Different foods behave differently, even at the same carb count
Fiber and protein slow down how carbs are absorbed, which is why two meals with the same carb count can produce very different curves. Simulating a specific food, not just a carb number, makes that visible before it matters.
It builds real intuition over time
Comparing a few options side by side before choosing what to eat is how people actually learn which foods run higher or lower for them, the same self-management skill a diabetes educator would try to teach, just available on demand.
Same math as the rest of the app
The simulator uses the same carbs × ISF ÷ ratio model used in the Dose Coach and the worksheet. Nothing here is a separate, unverified guess.