Pre-Bolus Strategy

Understand how insulin timing can improve post-meal glucose management and reduce unnecessary glucose spikes.

15 Mins

Timing prevents spikes after meals.

What is pre-bolusing?

Rapid insulin is fast, but it's not instant. It's like a runner who needs a little head start before the race begins. Pre-bolusing means giving the insulin its head start BEFORE you start eating, so it's ready and waiting when the sugar from your food arrives.

Why does timing matter?

If you eat first and give insulin after, the sugar runs into your blood really fast, but the insulin is still getting ready. That gap can make a sugar spike, like a wave that gets too big before your surfboard is ready to ride it. Giving insulin a little earlier helps the insulin be ready right on time.

How pre-bolusing works

Get the insulin ready

Before eating, give the insulin its head start.

Wait a little bit

Wait for a short while, like the example of 15 minutes shown on this card, so the insulin has time to start working.

Then eat your meal

Now start eating. The insulin is already awake and ready to catch the sugar as it comes in.

Smoother sugar levels

Because insulin and sugar arrive closer together, there's less of a big spike after the meal.

It's like starting your bath water a few minutes before you jump in, so it's not freezing cold or scalding hot when you get there. A little head start makes everything just right.

About the 15 Mins example

This card shows 15 minutes as an example head-start time. The exact number of minutes can be different for each person and should always come from their own doctor.

Pre-bolusing means giving insulin a little head start before eating, so it's ready right when the food's sugar shows up. Good timing helps keep sugar levels smoother instead of spiking.

This is a simple explainer for learning purposes only. The exact timing, amount, and strategy for insulin must always come from a doctor or diabetes care team, not from this card.

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