Post Breakfast Spike!

if you are not confident of a libre reading i would always double check with a finger prick blood test.
as for the post meal spike --- that is something i am affected by as well and i adjust my Insulin to carb ratio accordingly especially in the morning when i am more insulin resistant.

is your bg level returning to in range by 4 hours post meal ? also do you have a 1/2 unit pen. i find this helps when i want to make a small increase in a bolus dose because it just not quite right for the spike.

Brookemurph said:

Hi Everyone!

I’ve been really struggling the past couple of days with big spikes post breakfast. Went up to 14+ today from 2 crumpets and 4 units of insulin. I’m generally on a ratio of 1:16 so this is pretty much double my usual amount. My libre had me at 4.4 when waking up which has been unusually low the past few mornings also. I managed a 15 minute Prebolus still and didn’t go low. I tried reducing my basal and had the worst day yesterday of constant rises so don’t think that’s the way to go either!

Honestly at a loss of what to try next! Could it just be my sensor out of whack?

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I would get a 14+ spike if I ate 2 crumpets. Unlike normal insulin, injected insulin does not match the food you are eating which is why you spike. On DAFNE they teach you to ignore the spikes. If your blood sugars return to their pre-meal levels 5 hours after eating then your dose was correct.

Myself, I choose not to eat crumpets.

I can't tolerate bread at lunchtime, no matter what I do but fine at teatime. I've just gave up eating it at lunchtime as the mid afternoon spike left me feeling a bit sick.
Hope you get it sorted

I couldn’t eat anything carby at breakfast. But crumpets at tea no worries.
That may be the case for you too.

If you've only just changed your Basal. I'd give it at least 48 hrs before making a decision. But I'm on a 24 hr one.

Gave up on breakfast a long time ago, as the spikes were awful, and I didn't really want to eat at that time in a morning anyway.

I found having my breakfast all in one go (toast and fruit) gave me spikes, no matter how long I pre-bolused.

What works for me is to break my breakfast into multiple sittings. I pre-bolus (for everything), eat the toast, wait an hour or two for my cgm to go down, then eat the fruit. Depending on the trend, I might add or subtract some fruit from what I initially planned.

This really tamps down the spikes and still lets me have toast and fruit for breakfast. I work from home (all the time, not just due to the pandemic), so I'm in a lucky situation to be able to step away from work and have a second breakfast. I know this wouldn't be possible for everyone.

I find in the mornings insulin often takes longer to work, maybe its fighting the dawn phenomenon.
So I bolus then wait till my sugar starts to drop, sometimes up tl a hour.

My usual breakfast is a banana and small slice of toast.

Same here! Binned my old cereals. Yoghurt and granola over about 3 hours. You can eat normal stuff. But you can't eat like you used to. Must say breakfast is the only meal I have to baby