Home OGTT test - Rapilose and Insulin resistant

[CherryAA]

Both @bulkbiker @DCUKMod were kind enough to provide blood sugar figures for their OGTT tests using Rapilose that can be bought on the net
http://www.gpsupplies.com/rapilose-ogtt-glucose-solution-300ml-pack-of-1

Kraft did research on various typed of responses to sugar and its predictive effects for diabetes well before any actual diabetes manifest itself. This is yet another test I had not heard of prior to diagnosis and still have not had following diagnosis.

I am going to give myself the test tomorrow and see what happens. In preparation for that have looked at the original Kraft charts, which the Rapilose website then correlates to blood sugar level.

I then created a chart which includes the glucose data provided by @bulkbiker and @DCUKMod and the relevant glucose readings for the types of insuln curves described by Kraft.

I am thinking that using this method, doing the same test annually under the same conditions in terms of prior food content, should give an indication of whether or not one's own insulin responses are getting better or worse. Th relative swings compared to the Kraft curves may well be way higher than the curves show, because of th sheer shock t the system of a sudden flood after so long without.

In any event here is the data for you correlated to the rapilose website interpretation of the Kraft Curves and restated into mmol !

 

[Bluetit1802]

@CherryAA Every single thing you read about the OGTT tells you that you must observe the correct protocol to get accurate results. Among other things, this includes >150g carbs for 3 days prior with normal exercise. Just a reminder.

 

[CherryAA]

@CherryAA Every single thing you read about the OGTT tells you that you must observe the correct protocol to get accurate results. Among other things, this includes >150g carbs for 3 days prior with normal exercise. Just a reminder.

Yes I know- I saw that on the package as well.

By " accurate results " it means -

Results for a range of population eating more than 150g carbs per day - not an actual 150g cabs per day - or the relevant equivalent amount for a person who is 5 ft 2 or 6 ft 5 - so even under the conditions as described the number could vary dramatically depending on BMI, height,actual carb ingestion or even what someone might consider to be "normal exercise".

All of those things mean that whoever the most important measurement is not against anyone else, ( as it is for your own lipid profile) It is against yourself over time which may or may not include actions you take yourself to try and improve your own insulin response for example your LCHF diet or your exercise regime .

For example if you originally never exercised at all , and you did two tests the first with no exercise and the second with lots of exercise a year later - if the second results were much better that would still be good news because you are still actually responding better to the shock of the sugar than you were. I don't think its particularly relevant to know how it would have responded had you been behaving today as you were before because that is the very thing you gave up !

I don't see the point of actively seeking to behave as unhealthily as you were for the purposes of the test .

Bulk biker chose not to add in 150g of carbs daily - and I don't blame him, because 3 days of 150g will add immeasurably to the glucose burden and he didn't want to do that and nether will I.

Of course bulk biker's figures when he did the test were distorted compared to the overall data because he had not had 150g of carbs for three days first compared to these curves and so will mine be.

There is absolutely no doubt in my mind that by recording figures as low as he did , when starting off with no carbs at all - then his result - whilst being the same over shape but much lower than a standard diabetic shape is ASTONISHINGLY GOOD and pretty much shows that he has this thing beaten especially when coupled with a fasting insulin test of under 4 which puts him at the best end of the normal range for that too.

The fact that doctors use the OGTT to diagnose diabetes in people, doesn't change the fact that understanding the shape of your own diabetes curve when you already have diabetes and therefore possible insulin responses given the diet YOU eat, as opposed to one that is full of carbs, is not then interesting information in its own right. It should also be somewhat reassuring to see that the massive increase in the first 30 minutes is actually a similar experience that normal individuals experience and that WITHIN two hours he was actually in the same position as the "normal " curve. In fact given that the instructions state - test the blood sugar 2 hours after drinking and if that is all he had done, then it would have shown an entirely normal response. which coupled with the low fasting insulin figure means that its highly likely that if his doctor did not known he was diabetic then he would not be diagnosed as being so at this point. That is simply AMAZING and hats off to him for getting this far.

 

[Bluetit1802]

Yes, a well observed answer. I agree with you. My Rapilose is already on order.

 

[CherryAA]

Yes, a well observed answer. I agree with you. My Rapilose is already on order.

Thanks I must admit I'm a bit nervous about what mine will be given I'm so much less down the road than @bulbiker, but I am also angry that no-one gave me the opportunity to know my starting point!

 

[Bluetit1802]

Thanks I must admit I'm a bit nervous about what mine will be given I'm so much less down the road than @bulbiker, but I am also angry that no-one gave me the opportunity to know my starting point!

I'm very nervous too.

 

[4ratbags]

I know how you feel @CherryAA I have always heard about the OGTT but I've never had one and I've always thought it would have been a good idea as another way to mark my progress.

Sent from my SM-G955F using Diabetes.co.uk Forum mobile app

 

[CherryAA]

Thanks I must admit I'm a bit nervous about what mine will be given I'm so much less down the road than @bulbiker, but I am also angry that no-one gave me the opportunity to know my starting point!

We can hold cyber hands

Looking on the bright side- if you are LCHF too, then we can build up a body of information that actually tracks insulin resistance as measured by Kraft curves on diabetic patients succeeding in controlling it via diet - that would be pretty cool !
Ultimately all of this stuff is important in the quest to cross that chasm of misinformation I mention elsewhere - onwards and upwards

 

[DCUKMod]

I'm very nervous too.

Don't be nervous, Bluetit.

Are you going to carb-prep or do it on the fly? I chose to do it on the fly because I couldn't be bothered to eat the carbs for three days, and it felt a very unnatural thing to do. I also took note of the Endo's comments to me, when he prescribed a bunch of tests, including Coeliac profiling. When I mentioned to him I was a low carber and questioned the need to eat gluten, pre-test, he suggested I carry on with my normal diet, as really that's all most folks were doing, pre-coeliac testing. Changing wouldn't reflect my personal normal. (Of course he did agree it meant any antibodies showing up on the latest would be at significantly lower levels as I was already largely gluten-free). I decided to do the OGTT in my normal state.

When all is done, it's only a test. What comes out of it is only data. In reality, for you, I doubt any result will result in material changes to how you live your life. But as I've said a million times before; whatever the result, knowledge is power.

Good luck with it. It's an interesting exercise, and I found myself to be stupidly nervy when I did it, but it's only a couple of hours, and a few test strips.

 

[bulkbiker]

What have I started here!!!!!
But seriously this is turning out to be a really interesting experiment. I'm learning loads of new stuff thanks to @CherryAA @Bluetit1802 @DCUKMod and anyone else who participates.

 

[Bluetit1802]

Don't be nervous, Bluetit.

Are you going to carb-prep or do it on the fly? I chose to do it on the fly because I couldn't be bothered to eat the carbs for three days, and it felt a very unnatural thing to do. I also took note of the Endo's comments to me, when he prescribed a bunch of tests, including Coeliac profiling. When I mentioned to him I was a low carber and questioned the need to eat gluten, pre-test, he suggested I carry on with my normal diet, as really that's all most folks were doing, pre-coeliac testing. Changing wouldn't reflect my personal normal. (Of course he did agree it meant any antibodies showing up on the latest would be at significantly lower levels as I was already largely gluten-free). I decided to do the OGTT in my normal state.

When all is done, it's only a test. What comes out of it is only data. In reality, for you, I doubt any result will result in material changes to how you live your life. But as I've said a million times before; whatever the result, knowledge is power.

Good luck with it. It's an interesting exercise, and I found myself to be stupidly nervy when I did it, but it's only a couple of hours, and a few test strips.

My Rapilose has just arrived. Shivers already.

I have decided not to eat carbs beforehand for several reasons. Even though the results will probably be dire, they will reflect my situation as it is now, eating how I do at the moment, and that is what matters. As you know, I have been planning this for a while, and for the life of me couldn't see how I would increase my carbs by all that amount for 3 whole days, and didn't fancy the end result of that as far as my BS is concerned.

I now have to decide when, because I need a morning when I know I can sit quietly for 2 hours without being disturbed.

 

[DCUKMod]

I found that bit fairly simple, bearing in mind it's a fasting test. Instead of my wake up cup of tea, I just had a wake-up Lucozade, and sat down at my desk to read the forum and the online newspapers.

In order to be accurate with my finger prick timings, I set alarms on my phone for every 15 minutes. It's no good doing a 15 minute countdown timer, because it takes at least a minute to do each test, so over the length of the exercise, the later readings would be at more than 30, 45, 60 etc. minutes.

As well as taking slightly too much glucose (early morning calculations are obviously not my forte), I tested 15 minutes from starting the drink, rather than when I finished it, but I don't think that makes a really material difference in terms of what I did, as I drank the Lucozade down in one (to get it over with), and I also tested beyond the 120 minutes, so no harm done. I think I got the general drift.

Just jump in @Bluetit1802. It's over in a relative trice.

 

[Chook]

I'm watching your experiment with a lot of interest - I think you have more courage than me though.

 

[CherryAA]

My Rapilose has just arrived. Shivers already.

I have decided not to eat carbs beforehand for several reasons. Even though the results will probably be dire, they will reflect my situation as it is now, eating how I do at the moment, and that is what matters. As you know, I have been planning this for a while, and for the life of me couldn't see how I would increase my carbs by all that amount for 3 whole days, and didn't fancy the end result of that as far as my BS is concerned.

I now have to decide when, because I need a morning when I know I can sit quietly for 2 hours without being disturbed.

I have a freestyle monitor, so I will end up with real time results, its only been in a day so I will wait until next week to do it.

Its all been quite a mathematical journey for an accountant ! - I figured that given what I now know about my own triglyceride and glucose levels, somewhere, someone must have correlated the two - and sure enough they did

So I also found another way to measure your insulin resistance which you can also track through all your prior period blood tests to get a comparative. All you need is your fasting blood glucose and your triglyceride figures.

http://www.diabetes.co.uk/forum/threads/you-can-measure-your-own-insulin-resistance.126095/

The result are pretty much exactly as predicted ! would be interesting to see if other people's data correlates!

 

[rom35]

@Bluetit1802 Have you done that home OGTT test? Is there some possibility to improve insulin resistance over years?

 

[LooperCat]

@Darkhorse this thread might be of interest?

 

[Bluetit1802]

@Bluetit1802 Have you done that home OGTT test? Is there some possibility to improve insulin resistance over years?

I did it last summer sometime. I will do another in a month or two.

 

[first14808]

Just a sneaky little bump because this is being discussed in the One Show thread, and may be of interest to others. Especially how to obtain OGTT solution. Original link's broken, this one works:-

https://www.gpsupplies.com/catalog/...pilose-ogtt-glucose-solution-300ml-pack-of-1/

I'm planning to do this, but probably after my HbA1c in a couple of weeks.

 

[Mr_Pot]

What is difference between Rapilose and Lucozade?

 

[Bluetit1802]

What is difference between Rapilose and Lucozade?

Rapilose is a pre-mixed drink of exactly 75g glucose and nothing else. Lucozade isn't.