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Rising BG after Lunch

S

Spablauw_

Well-Known Member
Messages
52
Type of diabetes
Type 1
I already made a topic on this problem I'm having at Lunch.

I'm T1,18 years old and taking 4 shots a day (Novo Rapid and Lantus)

I just don't seem to get it right with my Insulin at Lunchtime

Let me explain the issue:
I'm starting Lunch around 90 mg/dl, I'm having 90g of carbs (brown bread), 30g of protein and 25g of fat. (According to my nutrition app)
Around 1,5 hour after Lunch my BG is ok around 140 but then I start rising to about 240.
It's like I'm having a really slow absorption of food? I'm only having this at Lunch and I'm starting to get really tired of it. I'm having this everyday right now?

I inject my insulin just before Lunch and I'm pretty sure it's not a basal issue because I did a couple of tests and I was Ok.

I think I'm actually having too much slow Carbs with maybe too much fat and protein during Lunch which causes the carbs to get digested slowly. Could this be the case or am I just having a slow digestion during Lunch?

I will maybe try injecting 1 unit extra and than after Lunch instead of before?

Would like to hear what you think of it!
 
Spablauw_ said:
I already made a topic on this problem I'm having at Lunch.

I'm T1,18 years old and taking 4 shots a day (Novo Rapid and Lantus)

I just don't seem to get it right with my Insulin at Lunchtime

Let me explain the issue:
I'm starting Lunch around 90 mg/dl, I'm having 90g of carbs (brown bread), 30g of protein and 25g of fat. (According to my nutrition app)
Around 1,5 hour after Lunch my BG is ok around 140 but then I start rising to about 240.
It's like I'm having a really slow absorption of food? I'm only having this at Lunch and I'm starting to get really tired of it. I'm having this everyday right now?

I inject my insulin just before Lunch and I'm pretty sure it's not a basal issue because I did a couple of tests and I was Ok.

I think I'm actually having too much slow Carbs with maybe too much fat and protein during Lunch which causes the carbs to get digested slowly. Could this be the case or am I just having a slow digestion during Lunch?

I will maybe try injecting 1 unit extra and than after Lunch instead of before?

Would like to hear what you think of it!
Click to expand...
25g of fat is quite a lot, the UK government recommends no more than 30g (saturated fat) per day. You're having almost all that allowance for lunch.

Simple way to work out if it's fat, leave it out of your lunch. Sure you might just end up eating a bread sandwich, but it will be a clear indication of whether the fat is to blame.

If you're issue was down to slow conversion of carbs to glucose then you'd likely hypo before your BG started to rise from your lunch.
 
GrantGam said:
25g of fat is quite a lot, the UK government recommends no more than 30g (saturated fat) per day. You're having almost all that allowance for lunch.

Simple way to work out if it's fat, leave it out of your lunch. Sure you might just end up eating a bread sandwich, but it will be a clear indication of whether the fat is to blame.

If you're issue was down to slow conversion of carbs to glucose then you'd likely hypo before your BG started to rise from your lunch.
Click to expand...

I'm not having 25 saturated fat in one meal, I think like 5-10 of them is saturated. I'm having two slices of peanut butter that contains 10g fat for each slice with very low saturated fat.

I sometimes have hypos before bouncing back up so that might be it?

I'll try and leave fat out tomorrow, how about protein? Does it slows digestion as well?
 
Spablauw_ said:
I'm not having 25 saturated fat in one meal, I think like 5-10 of them is saturated. I'm having two slices of peanut butter that contains 10g fat for each slice with very low saturated fat.

I sometimes have hypos before bouncing back up so that might be it?

I'll try and leave fat out tomorrow, how about protein? Does it slows digestion as well?
Click to expand...
Whether the fat is saturated or not doesn't really matter, the prolonged BG rise can still be an issue regardless. Fat is fat with regards to BG.

If you're having hypos then your elevated BG will be a case of rebound hyperglycemia. Ways round that:

-split your bolus
-bolus after eating
-reduce the fat content

Protein has a negligible effect on BG when eaten alongside carbs as already pointed out. Unless your eating buckets of the stuff then I wouldn't give it too much thought.
 
GrantGam said:
Whether the fat is saturated or not doesn't really matter, the prolonged BG rise can still be an issue regardless. Fat is fat with regards to BG.

If you're having hypos then your elevated BG will be a case of rebound hyperglycemia. Ways round that:

-split your bolus
-bolus after eating
-reduce the fat content

Protein has a negligible effect on BG when eaten alongside carbs as already pointed out. Unless your eating buckets of the stuff then I wouldn't give it too much thought.
Click to expand...

Oké, thankyou.
I normally have around 70-80g fat per day.
About 25-30 % of my daily calorie intake (2500kcal) is that too much?

I think I will start having my shot after meal, it should do better. If not I could try a split bolus but I prefer not to since I'm not on a pump!
 
Spablauw_ said:
Oké, thankyou.
I normally have around 70-80g fat per day.
About 25-30 % of my daily calorie intake (2500kcal) is that too much?

I think I will start having my shot after meal, it should do better. If not I could try a split bolus but I prefer not to since I'm not on a pump!
Click to expand...
I'm not sure if that's too much or not @Spablauw_. It depends on whether it affects your BG in a negative way (or if at all), if your active, inactive, etc, etc...

Fat is a macro I don't count. Nor do I count calories. I count carbs and that's really it. I do know that when I eat fatty meals, my BG management suffers. As a result, I minimise this as much as possible. Either by making the meals smaller or just less frequent.

That's all the science I've applied really:)
 
Bear in mind that protein slows down the absorption of glucose (source: novo nordisk website)
 
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