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Testing - 1 hour
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cugila
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The time starts from when you finish the meal.
Testing at 1 hr will possibly show any spike dependent on the type of food you ate. By 2 hrs you should be back to pre meal levels, however if you have had a high fat content meal it might not show any spike until 3 or even 4 or more hours later. The so called ' Pizza Effect'.
Ken
Testing at 1 hr will possibly show any spike dependent on the type of food you ate. By 2 hrs you should be back to pre meal levels, however if you have had a high fat content meal it might not show any spike until 3 or even 4 or more hours later. The so called ' Pizza Effect'.
Ken
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Specific to your question, the hour starts when you finish your meal
daisy1
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Oh I thought it was an hour, or two hours as I usually do, after starting your meal? I read that somewhere here on the forum.
cugila
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daisy1 said:
Hi Daisy, if you read my post after the OP that is what you should do and the reasons why.......I have no idea who told you that (start) or when. It is simply wrong. One we missed I suppose.
Ken
daisy1
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Thanks Ken and Hana. Oh dear, does that mean all my post meal readings are wrong :shock:
Still the fasting ones are correct. But now I've got to start again working out what foods
spike my levels.
But a conflicting opinion from Hana though. Maybe where I saw that
originally.
Still the fasting ones are correct. But now I've got to start again working out what foods
spike my levels.
But a conflicting opinion from Hana though. Maybe where I saw that originally.
phoenix
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Sorry Ken but I have to agree with Daisy. I've just done a bit of searching to try to find accurate information..
Most people within the diabetes community seem to advocate testing 1-2 hours after the start of a meal. The phase most used is testing 1-2 hours after the first bite as here
http://www.diabetesmonitor.com/othe...ing-one-or-two-hours-after-meals-question.htm
The only authoritive statement I could find is from the US (ADA)....missed out the targets as they differ from the UK.
Target Blood Glucose Levels for People with Diabetes Before meals ()
1 to 2 hours after the start of a meal less than ()
http://diabetes.niddk.nih.gov/dm/pubs/eating_ez/
also
http://diabetes.webmd.com/blood-glucose
The other points are that post prandial targets in the uk (and elsewhere) for people with diabetes are higher than preprandial, not a return to preprandial levels. I realise that this is a type 2 question but I would be very hypo by the next meal if my 2 hour level was as low as my pre meal level . (as oftenI don't reach my peak until then anyway!)
Actually the postprandial level must surely be dependent upon the preprandial level, I have been told to aim for a rise of no more than 50mg/dl (2.7mmol).
In my own experience (and again with the caveat I'm not type 2) many meals (not just pizza) will delay the spike When I used continuous monitoring a few weeks ago I found that quite frequently the highest level was around the 2 hour mark and sometimes a bit later. (in fact only breakfast had the pattern most often seen as a 'normal' curve.)
Most people within the diabetes community seem to advocate testing 1-2 hours after the start of a meal. The phase most used is testing 1-2 hours after the first bite as here
http://www.diabetesmonitor.com/othe...ing-one-or-two-hours-after-meals-question.htm
The only authoritive statement I could find is from the US (ADA)....missed out the targets as they differ from the UK.
Target Blood Glucose Levels for People with Diabetes Before meals ()
1 to 2 hours after the start of a meal less than ()
http://diabetes.niddk.nih.gov/dm/pubs/eating_ez/
also
http://diabetes.webmd.com/blood-glucose
The other points are that post prandial targets in the uk (and elsewhere) for people with diabetes are higher than preprandial, not a return to preprandial levels. I realise that this is a type 2 question but I would be very hypo by the next meal if my 2 hour level was as low as my pre meal level . (as oftenI don't reach my peak until then anyway!)
Actually the postprandial level must surely be dependent upon the preprandial level, I have been told to aim for a rise of no more than 50mg/dl (2.7mmol).
In my own experience (and again with the caveat I'm not type 2) many meals (not just pizza) will delay the spike When I used continuous monitoring a few weeks ago I found that quite frequently the highest level was around the 2 hour mark and sometimes a bit later. (in fact only breakfast had the pattern most often seen as a 'normal' curve.)
daisy1
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Thanks for that Phoenix and for researching all that information.
So my testing results may be correct after all?
Glad this subject has come up thanks to Endure.
Will keep looking at this thread.
So my testing results may be correct after all?
Glad this subject has come up thanks to Endure.
Will keep looking at this thread.cugila
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Hi Phoenix.
I think we are going to have to agree to disagree, it all depends where you look and who you speak too. What you read. There is a much conflicting advice.
One of the links you gave saying that "Most people within the diabetes community seem to advocate testing 1-2 hours after the start of a meal."...... I don't think that is correct......that is just something from somebody on a particular website, Diabetes Monitor......not a definitive statement from an informed source. I think maybe we need to do more research into this and see what the real concensus is. What the UK medical professional's advise. You have me thinking now !
I still say from the time you finish the meal is more logical. It's the advice I was given by more than one HCP. I have seen the differing views all over the net, again conflicting. Some of the American sites say from the start, others especially in the UK say from after the meal......WebMD UK says after, which contradicts the US one ! Much of the medical advice around I have read says after the meal....I suppose you pays your money and makes your own choice. Logically I would say after.....not from the start ? Most of the food would only just be starting to be absorbed into the intestine and the blood stream. The process of absorption takes time.
Post prandial which is what we are talking about means after a meal. Not from the start of the meal.
I have had meals which have taken 2 - 3 hrs......I would have to be testng during the time I was eating and still consuming things which would affect my Bg levels if it was from the start. I am sure it would give you some sort of reading, I don't think it would be an accurate picture of what is going on though. I don't think at that point it would give me the peak level, the spike, just a level, that's all.
I think it also depends on what sort of meal you are eating, fast acting may spike earlier, slower acting stuff would take longer. I have read Mendoza's views......he is an American Journalist who gives his opinions about many things. Some I agree with, others not. This is one that I don't think is 100% accurate. My opinion for what it's worth.
Ken
I think we are going to have to agree to disagree, it all depends where you look and who you speak too. What you read. There is a much conflicting advice.
One of the links you gave saying that "Most people within the diabetes community seem to advocate testing 1-2 hours after the start of a meal."...... I don't think that is correct......that is just something from somebody on a particular website, Diabetes Monitor......not a definitive statement from an informed source. I think maybe we need to do more research into this and see what the real concensus is. What the UK medical professional's advise. You have me thinking now !
I still say from the time you finish the meal is more logical. It's the advice I was given by more than one HCP. I have seen the differing views all over the net, again conflicting. Some of the American sites say from the start, others especially in the UK say from after the meal......WebMD UK says after, which contradicts the US one ! Much of the medical advice around I have read says after the meal....I suppose you pays your money and makes your own choice. Logically I would say after.....not from the start ? Most of the food would only just be starting to be absorbed into the intestine and the blood stream. The process of absorption takes time.
Post prandial which is what we are talking about means after a meal. Not from the start of the meal.
I have had meals which have taken 2 - 3 hrs......I would have to be testng during the time I was eating and still consuming things which would affect my Bg levels if it was from the start. I am sure it would give you some sort of reading, I don't think it would be an accurate picture of what is going on though. I don't think at that point it would give me the peak level, the spike, just a level, that's all.
I think it also depends on what sort of meal you are eating, fast acting may spike earlier, slower acting stuff would take longer. I have read Mendoza's views......he is an American Journalist who gives his opinions about many things. Some I agree with, others not. This is one that I don't think is 100% accurate. My opinion for what it's worth.
Ken
Does your body know when you've stopped eating? It certainly knows when you've started eating...
I've never given this any thought. I've always taken my measurment from when I've FINISHED eating - but the more I think about it, the more I wonder. What signals the Pancreas to start kicking out insulin to lower sugar? Food hitting your stomach? Or your stomach filling up?
:?:
I've never given this any thought. I've always taken my measurment from when I've FINISHED eating - but the more I think about it, the more I wonder. What signals the Pancreas to start kicking out insulin to lower sugar? Food hitting your stomach? Or your stomach filling up?
:?:
daisy1
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Well I guess you can split the difference and count from half way through between main course and pudding 8) for example. In fact I eat fast so it probably doesn't make much difference either way. But for a long leisurely gourmet meal then it does matter. I do see the logic of starting the timing from after the meal though. I think that's what I will do in future.
Edit: it has just come back to me that it was my Doctor who told me to test two hours after the
start of the meal.
Edit: it has just come back to me that it was my Doctor who told me to test two hours after the
start of the meal.
phoenix
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Well I certainly tested mid meal at our village fete the other week. The meal lasted about 4 hours!
Patch: In a person without diabetes insulin is released in 2 phases. The first phase is a spike or bolus and starts within minutes of starting a meal.It lasts for 10-15 minutes. This initial response also surpresses the release of glucose from the liver
After this there is a second phase in which there is a more gentle release of insulin , released in 3-6 minute waves. This second phase is designed to return levels to normal and can last 2-3hours.
The first phase insulin response is often diminished even before a diabetes diagnosis in both type 2 and LADA. (and is one of the targets of some medications)http://ec.digaden.edu.mx/moodle/moodledata/99/01medint/02_3gasend/07aenend/50bare.pdf
Don't know if it helps you decide when to test. I should think one thing to consider is how variable are the length of your meals. If you are fairly consisitent it probably doesn't matter a great deal.
