Rapilose for home 75g OGTT

I previously documented my experiences using cerals & sweets to simulate a 75g OGTT
https://www.diabetes.co.uk/forum/th...f-rapilose-for-home-ogtt.175741/#post-2324679
It had been pointed out to me that the real glucose solution contains no fructose component, nor protein or fat that could interfere with the result so the only true way of conducting this experiment is to use the official solution.
So look what arrived over the weekend



So first of all I took my fasting, allgood there



So, at 9.59am it was down the hatch time
It tastes like a cheap orange sugery drink, reminds you of childhood
Don't know how it would take you 5 min to drink, mine was gone in 30 sec



So the 30 min test & kaboom, this is different gravy to 75gs of carbs from normal food
I hadn't seen a figure like this in 6 months



Sweaty palms as I waited for my 60 min test
Not being able to move around is a real hinderence yet a requirement for the test
I was happy the brakes appeared at the one hour mark



Now I'm in no mans land wondering if I'm going to flat line at 10 properly come down once my 2nd phase kicks in
Needless to say I was happy with this


Happy at this point to be sure of coming in well under the diagnostic points of 11.1 & 7.8 I was free wheeling to the finish line
I was not expecting to see this reactive hypo



Well, I wasn't having that so retook straight away



I ploughed on as honestly I felt fine, no different to when I was at 10 or 4.1
The next test was important


Encouraging, I put away the biscuits I kept in reserve
Final test to come at the 3 hour mark



So, after that roller coaster I arrive back at where I started
Not sure what to think, I'm dissapointed with the 10 & the hypo but happy with the 4.1 at 3 hours.

I've proven to myself that no amount of naked carbs in real food can replicate the 75g of pure glucose in this solution.
I'll definately repeat the test probably in 6 months to see where I'm going.

Apologies for being self indulgent by posting all of this hear but I'd be delighted with some feedback.
Thanks for reading.

bulkbiker said:

I went quite a bit higher too..had you "carbed up" beforehand or was this straight from low carb?

Click to expand...

Good morning.
I wouldn't say I carbed up cause I've been back eating carbs for the past 6 months.
Nothing crazy but I could put away 100g+ in my evening dinner.
Often have 300g of spagetti with spag bol or meatballs with garlic bread for example.
Meter would normally put me in the mid 5s at 2 hours after that.

The one thing I didn't do was exercise the day before the test.
Normally I'd have a 3km evening walk but I purposely avoided it the night before.

DCUKMod said:

I didn't carb up before I did the test. using Lucozade. I had a little more than 75gr glucose - just a couple of gramms, so not material, bearing in mind my test for an experiment, rather than anything else.
View attachment 46068

Click to expand...

I see they changed the glucose content in 2017.
So you'd now have to drink 850ml to represent 75g of glucose for a OGTT.
That seems like a lot.

I'd harked on here in the past how Jelly Beans could be used as a direct replacement for the Rapilose Glucose Solution.
Even quoting this study & how manu surgeries in the US use them for the 50g gestational diabetes test.
https://pubmed.ncbi.nlm.nih.gov/10561636/

Well that turned out to be a load of waffle.
Note to self, don't believe everything you read on the internet.

@DCUKMod & @bulkbiker
Where do us 3 stand now then ?
FBG <5.6 ..... Check
HbA1c <42 ...... Check
75g OGTT <7.8@2 Hours ...... Check

So 3 diabetics walk into a doctors surgery with unkown histories.
What grey zone do we exist in now ?

Lamont D said:

If I was you, I would let my doctor have a look at the result and ask for another supervised eOGTT.
We have a sub forum on RH, do please read. If you have any questions, please ask.

Click to expand...

That's the first thing I thought too once I saw the 2.8 & the 3.2.
Thing is I never go that low with "normal" food.
Yes I'd see 4's at the 2 hour mark with a low carb meal & 5's if I eat over 100gs of carbs.
I did however get a 3.0 once when I tested with Jelly Beans.
To go hypo I have to eat pure carbs, no protein, no fat.

The reason I couldn't get a proper OGTT done is cause the surgery don't want people 2 hours + in the building during Covid.

bulkbiker said:

We'd be classed as "normal" non-diabetic or in usual parlance "cured".

Click to expand...

You can't use that word, be like a thesp saying Macbeth.

I wonder where we'd rate for glucose regulation in a normal population.
With a third of Americans either full blown or pre we'd be ahead of them I'd wager.
Perhaps somewhere in the middle of the pack.
Long may it last.

Lamont D said:

I would not dismiss my reasoning on your test result, I may be totally wrong but having a hypoglycaemic episode that low could be dangerous especially if you are unaware of going hypo.

Click to expand...

I apologise if I gave the impression I was brushing off your advice.
You are a poster of the highest standard here & one I gain great knowledge from especially in your specialty of Reactive Hypoglycemia.

Lamont D said:

What is normal foods? The basic foods such as we have been brought up on, can be really bad!
If you are carb intolerant, you might still be having something that you are intolerant to.

Click to expand...

I would have yoghurt for breakfast, typically 12g of carbs.
If I'm short for time I might have toast in the office, 30g of carbs.
For lunch I'd have a sandwich most days with the occasional pack of crisps, 30g of carbs (+12g for the crisps).
2 cups of coffee with about 100ml of milk, about 8gs of carbs each.
For all the above I'd be back in the 4s at 2 hours with no exercise.
Dinner is when I tend to let the hair down, potatoes, rice & pasta which now don't seem to spike me are eaten most days.
I could accumulate 100+grams of carbs over dinner but I'd normally follow with a brisk 3km walk so I'd be back in the low 5s at the 2 hour mark.
That's why I was so surprised with the 10 in the OGTT, the highest 1 hour I've seen in months was 7.6 after eating pizza.

Lamont D said:

A simple question, because of my experience, can you fast for longer than four hours? Can you describe what happens?

Click to expand...

I do notice my blood sugar running low post lunch, about an hour before dinner, I often find myself snacking on a piece of fruit, nuts or cheese to tide me over.
Now that you say it I haven't tested my blood at this time as I assume I am at fasting.
I've missed the opportunity this evening as now it's post dinner but will check about 5:30pm tomorrow.

Lamont D said:

Lastly, if you can't get a test from your doctor, I would repeat the test with a really high carbs meal. Such as a mixed meal test or just carbs. Always do an extended glucose test, two hours you don't get the full picture.

Click to expand...

I normally test at 2 hours & occasionally at 1 hour.
I will add a 3 hour & 4 hour follow up post in the coming days