Cheerio spikes on FreeStyle Libre, but not on BG monitor

May depend on the error rate of sensor and glucose meter.
Why give him Cheerios if it spikes his BSLs??

 

That is one way to do it but ... Are we just continuing to be duped by the cereal companies which have been duping us all ever since Dr Kellogg made cornflakes over a century ago ??

 

Hello @Joesdad

There is nothing wrong with eating cereals if that's what you do.

However.

The problem with all cereals is that they are high in carbs, which can take a while to be digested and get absorbed by the body.

This is where the "spike" comes in. Take me for example, I will eat a mix of at least 3-4 cereals which can be a fair amount of carbs. Now if I inject to cover this odds on my blood stars will drop, but I know that 3-4 hours later my bloods will go way up, hence "spike"

As for the Libre, well that could be down to dodgy sensor as I have had it before now where Libre has said 16.5 yet bloods say 10.4, it's just one of those things. If the sensor continues to be out, by as much as you say, then I would contact Abotts and report it, they may replace it free.

The other thing, rereading your post, when did you attach the sensor?

Many of us find that when you first attach them then activate it, the first 24 hours can give "interesting" readings.

What many of us do is when the sensor is due to be replaced, we stick a new sensor on BUT do not activate it, basically let it sit there for anything upto 24hours, which can give better more consistant readings.

Can't help on the GI foods as I gave up using that index years ago.

 

Each brand of meter has an error rating. That is when tested against a god standard like a lab blood test it may be out by +/- x %.
Glucose meters these days are supposed to have an error rating less than +/- 15 % but also depending on the BSL that error rating may be worse or better at say lower or upper ranges of BSL.
I have read that the Contour next meter has a +/- 5 % error rate which is said to be best in class. And I use my Contour Next meter as the one I believe over anything else at home.
I use a different meter when out and about because it is smaller, more compact and it also reads ketones on a separate strip. I will use it if needed to read ketones at home as well but its error rating for BSL is nearer +/- 12 %.
The same applies to the Libre. It has an error rating but I am unaware of the figures.
I do know some find that the Libre reads too low at times. If you type 'Libre' into the search box upper right corner of the Forum screen you can find past threads (topics and posts) about it. Most people I gather use it for trends rather than accurate BSLs readings..

 

I have answered the question below. Ha! love the comment about the South African doctor. But I would suggest you subscribe to Zoe Harcombe to obtain an objective view of the nutrition and where the world have gone wrong. It may be worth all your health's sake in the long run !! Talking as a TID for 52 years.

 

Contour Next system is indeed extremely accurate. Or at least relative accuracy in terms of repeatability. I’ve never seen a variation of more than 0.2mmol/L on a repeated test, and have even seen three repeats return absolutely identical results. Not sure on absolute accuracy against a gold standard.

 

I have also found that the Libre is fairly accurate when BG are between 4 and 12. Anything above or below these figures they can be out as much as 20%. I am sure that you aware that Libre in measuring interstatial fluid, whereas the Accu chek will be measuring blood

 

Are you saying you will see a spike from said cereal 3-4 hours later after eating......?

 

Roughly that kind of time line sometimes 5 hours.

Why?

 

Each BSL excursion above normal recommended range cumulatively becomes a potential issue down the line. That is what HBA1C is about to some degree also.

 

So you are saying that the BSL definitely reaches peak 5 hours after eating carbs/fat and that the insulin only lasts 4 hours ???
What insulin may I ask??