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Time between meal and after-meal test

SugarDaddy91

SugarDaddy91

Well-Known Member
Messages
55
Location
Northern Norway
Type of diabetes
Type 2
Treatment type
Diet only
Dislikes
Wasps. Terrified of wasps. And retinopathy.
Hello, everyone. I am currently doing some fine-tuning of my insulin dose and I am wondering:
Why do we wait 1.5 hours to measure post-prandial sugar? Does it mean that in between the meal and the measuring, the sugar will be higher and it'll settle by that reading, or is it supposed to be at max then?
Thanks!
 
SugarDaddy91 said:
Hello, everyone. I am currently doing some fine-tuning of my insulin dose and I am wondering:
Why do we wait 1.5 hours to measure post-prandial sugar? Does it mean that in between the meal and the measuring, the sugar will be higher and it'll settle by that reading, or is it supposed to be at max then?
Thanks!
Click to expand...

BS should be settling back down after about 2 hours. In my case, it takes closer to 3. The level will be higher at about an hour after eating for most of us. Sometimes, it's good to test then to really see what kind of spike we are getting from a particular food. Ideally, the reading at 2 hour post meal should be close to the pre meal reading; if it's higher than 2mmols of a difference, you are probably eating too many carbs.
 
There is no reason why you can't take a series of readings on a couple of occasions to find out the shape of the spike. For example, you could test every half hour for three hours. This is the sort of thing for which the Libre etc. are useful. continuous monitors allow you to see what is really going on but since they are expensive then more tests are a cost effective way of carrying on.
 
SugarDaddy91 said:
Hello, everyone. I am currently doing some fine-tuning of my insulin dose and I am wondering:
Why do we wait 1.5 hours to measure post-prandial sugar? Does it mean that in between the meal and the measuring, the sugar will be higher and it'll settle by that reading, or is it supposed to be at max then?
Thanks!
Click to expand...

Insulin peaks around the 90 min mark (insulin's such as Novorapid/Apidra) so it's a good time to test, if you find you've spiked too high bolus further ahead of your food to see if this helps.
 
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