Why/how Does Fat Increase Blood Glucose?

Freema · Oct 27, 2016

hey Again I stumbled over an article explaining in what way fat can raise blood glucose... maybe most relevant for type 1 diabetic or insuline users of type 2 ...
I was a Little puzzled to find that fat in any ways could be able to raise blood glucose as I have been taught that fat is the only thing that never raises blood glucose besides from pure alcohol .
If you´ll take the time and read the article , I like to hear what you think of it..

http://blog.joslin.org/2011/09/why-does-fat-increase-blood-glucose/

http://antranik.org/the-catabolism-of-fats-and-proteins-for-energy/

bulkbiker · Oct 27, 2016

I read the first one until here...

"First, Fettuccine Alfredo, garlic bread and tiramisu are, for the most part, a mixture of carbohydrate and fat. But it’s the fat in the meal that is contributing to the elevated readings."

What utter cobblers.. the carb causes the elevated readings... the fat delays the spike and maybe slows it down.

Take your blood before and after a bulletproof coffee or fat bomb and you'll see minimal changes.

Try it after garlic bread and pasta...

Dan6 · Oct 27, 2016

From my basic understanding fat doesnt necessarily raise your levels. It acts as more of a hindrance as it takes longer for the body to break down the fat and get what it needs. Hence when i havena takeaway my levels can be good when i go to bed but higher in the morning.

tim2000s · Oct 27, 2016

Did you read all of the first article? It was purely focused on T1 and was pretty reasonable in what it said @bulkbiker

bulkbiker · Oct 27, 2016

The second article seems to say that if you have ketones you will develop ketoacidosis whatever happens which I'm afraid is also wrong.

tim2000s said:
Did you read all of the first article? It was purely focused on T1 and was pretty reasonable in what it said @bulkbiker

It doesn't mention type 1 at all though does it? Just says you need have your insulin dose or your oral meds? do Type 1's take oral meds?..unclear at best surely.

tim2000s · Oct 27, 2016

bulkbiker said:
The second article seems to say that if you have ketones you will develop ketoacidosis whatever happens which I'm afraid is also wrong.

It doesn't mention type 1 at all though does it? Just says you need have your insulin dose or your oral meds? do Type 1's take oral meds?..unclear at best surely.

Rereading it, no I guess it isn't clear, although it describes the T1 pizza effect perfectly.

noblehead · Oct 27, 2016

bulkbiker said:
It doesn't mention type 1 at all though does it? Just says you need have your insulin dose..unclear at best surely.

It's a subject that comes up many times between the type 1's, its only now that the experts are realising that it isn't only carbs that raise bg levels in type 1's.

Here's a better article that does mention type 1's:

http://www.joslin.org/dietary-fat-can-affect-insulin-requirements-in-type-1-diabetes.html

bulkbiker · Oct 27, 2016

tim2000s said:
Rereading it, no I guess it isn't clear, although it describes the T1 pizza effect perfectly.

Indeed but without specifying what it is talking about gets lost. And of course the headline is incorrect even in describing the pizza effect.

Freema · Oct 27, 2016

thanks a lot, very confusing , yes the last man haven´t got a clue of what diabetes is, I only think the first part of his explanation of how the different carbs, proteins and fats are broken down in our body is interesting, the rest is ********

Daibell · Oct 27, 2016

Hi. Both fats and carbs have a small effect on blood sugar and ideally you need to increase the insulin shots a little to take account of them.

Dan6 · Oct 27, 2016

Its a tricky balancing act fats take longer to break down. Fats dont actually increase blood sugar it affects the speed of how carbs can be broken down.

Generally with fatty meals I do 1 injection pre meal and one a few hours afterwards otherwise I have hypos.

bulkbiker · Oct 27, 2016

I think that the problem with incendiary articles such as those is that we read them from our own position. Because they aren't specific enough then, I for one, get very irate about them. @tim2000s if I came across rather stroppy I do apologise I certainly did not mean to.

noblehead · Oct 27, 2016

Dan6 said:
Its a tricky balancing act fats take longer to break down. Fats dont actually increase blood sugar it affects the speed of how carbs can be broken down.

Generally with fatty meals I do 1 injection pre meal and one a few hours afterwards otherwise I have hypos.

This Mendosa article explains what happens once the carbs have stopped effecting bg levels:

So what about after the carbohydrates are finished doing their thing? That’s when the fat itself begins to exert its effects. The process goes something like this:

You eat a high-fat meal or snack (this is the fun part).
In a few hours, the fat begins to digest; this continues for several hours.
The level of fat in the bloodstream (triglycerides) rises.
High triglycerides in the bloodstream cause the liver to become resistant to insulin.
When the liver is insulin resistant, it produces and secretes more glucose than usual.
The blood glucose rises steadily as the liver’s glucose output goes up.

This is what causes the gradual, delayed blood glucose rise after consumption of large amounts of fat. The response seems to be “dose-dependent” – the more fat you consume, the more insulin resistant the liver becomes, and the more glucose it produces. The type of fat also appears to play a role. Saturated fats (the type found in dairy and animal products) seem to cause more insulin resistance than monounsaturated and polyunsaturated fats (the type found in vegetable products).

http://www.mendosa.com/The-Fat-of-the-Matter-How-Dietary-Fat-Effects-Blood-Glucose.htm

bulkbiker · Oct 27, 2016

noblehead said:
This Mendosa article explains what happens once the carbs have stopped effecting bg levels:

So what about after the carbohydrates are finished doing their thing? That’s when the fat itself begins to exert its effects. The process goes something like this:

You eat a high-fat meal or snack (this is the fun part).

In a few hours, the fat begins to digest; this continues for several hours.

The level of fat in the bloodstream (triglycerides) rises.

High triglycerides in the bloodstream cause the liver to become resistant to insulin.

When the liver is insulin resistant, it produces and secretes more glucose than usual.

The blood glucose rises steadily as the liver’s glucose output goes up.

This is what causes the gradual, delayed blood glucose rise after consumption of large amounts of fat. The response seems to be “dose-dependent” – the more fat you consume, the more insulin resistant the liver becomes, and the more glucose it produces. The type of fat also appears to play a role. Saturated fats (the type found in dairy and animal products) seem to cause more insulin resistance than monounsaturated and polyunsaturated fats (the type found in vegetable products).

http://www.mendosa.com/The-Fat-of-the-Matter-How-Dietary-Fat-Effects-Blood-Glucose.htm

I think he is saying that is after a carb heavy meal like the examples he states at the start of the article

"Pizza. A hot fudge sundae. Movie theater popcorn. Cheesesteaks" What do they have in common?

He then states they are high in fat.. conveniently forgetting apparently that they are all high in carbs too... As far as I am aware the fats slow the carb impact.. so the carbs don't finish doing their thing they just carry on..
He seems to be saying that the body process the carbs first then the fats..obviously in the compartmentalised stomachs that like cows we all have..

noblehead · Oct 27, 2016

bulkbiker said:
He then states they are high in fat.. conveniently forgetting apparently that they are all high in carbs too... As far as I am aware the fats slow the carb impact.. so the carbs don't finish doing their thing they just carry on..

No I don't think that what it says, read the part where it says Trig levels are temporary raised which in turn leads to insulin resistance, I know as a type 1 eating a high-carb/high- fat and low-carb/high-fat meals my bg levels are raised for several hours after.

kokhongw · Oct 28, 2016

This study suggest that the lipid clearance is dependent on the level of liver insulin-resistance...but does not examine the cause of the liver insulin-resistance.

https://www.ncbi.nlm.nih.gov/pubmed/27095446

Our findings demonstrate that prediabetic patients show a lower phenotypic flexibility after external aggression, such as OFTT compared with nondiabetic patients. The postprandial response increases progressively according to non-diabetic, prediabetic and type 2 diabetic state and it is higher in patients with liver insulin-resistance.

bulkbiker · Oct 28, 2016

noblehead said:
No I don't think that what it says, read the part where it says Trig levels are temporary raised which in turn leads to insulin resistance, I know as a type 1 eating a high-carb/high- fat and low-carb/high-fat meals my bg levels are raised for several hours after.

All I know is eating fat does not raise my blood sugar..as I no longer eat any of the items on his menu I guess I shouldn't comment any further.

Daibell · Oct 28, 2016

Daibell said:
Hi. Both fats and carbs have a small effect on blood sugar and ideally you need to increase the insulin shots a little to take account of them.

Sorry. I meant fats and proteins not carbs.

tim2000s · Oct 28, 2016

bulkbiker said:
All I know is eating fat does not raise my blood sugar..as I no longer eat any of the items on his menu I guess I shouldn't comment any further.

Right, but you are not an insulin dependent diabetic. You have functioning beta cells, so the discussion isn't really relevant to you.

bulkbiker · Oct 28, 2016

tim2000s said:
Right, but you are not an insulin dependent diabetic. You have functioning beta cells, so the discussion isn't really relevant to you.

charming... I'll butt out then.

Why/how Does Fat Increase Blood Glucose?

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