Re: Interesting study on saturated fat and insulin sensitivity

[Guest guest]

here. Does

> anyone here have more information on any link between dietary

saturated fat

> and insulin resistance, or any ideas about why it might show up only

in

> overweight subjects?

>

> Thanks.

>

Only thing I've seen is the sections in " Mastering Leptin " that talk

about this. In the presence of too much carb (like this study), yes

the liver's handling of saturated fat contributes to even more insulin

resistance. And usually overweight people have insulin resistance

started anyway. Something about excess stimulation of gastric

inhibitory peptide.

Connie

[Guest guest]

here. Does

> anyone here have more information on any link between dietary

saturated fat

> and insulin resistance, or any ideas about why it might show up only

in

> overweight subjects?

>

> Thanks.

>

Only thing I've seen is the sections in " Mastering Leptin " that talk

about this. In the presence of too much carb (like this study), yes

the liver's handling of saturated fat contributes to even more insulin

resistance. And usually overweight people have insulin resistance

started anyway. Something about excess stimulation of gastric

inhibitory peptide.

Connie

[Guest guest]

-

>It's important not to generalize to broadly from a single study, especially

>without reading the whole thing, but if we take this at face value, it

>suggests that increasing dietary saturated fat, at least in the context of a

>high-carbohydrate diet, decreases insulin sensitivity, but only in

>overweight individuals.

I think it's fairly well understood (at least in some circles) that

mixing a lot of fat with a lot of carbs is bad news.

-

[Guest guest]

On 1/10/06, Idol <Idol@...> wrote:

> -

>

> >It's important not to generalize to broadly from a single study, especially

> >without reading the whole thing, but if we take this at face value, it

> >suggests that increasing dietary saturated fat, at least in the context of a

> >high-carbohydrate diet, decreases insulin sensitivity, but only in

> >overweight individuals.

>

> I think it's fairly well understood (at least in some circles) that

> mixing a lot of fat with a lot of carbs is bad news.

But why a saturated fat bad compared to a fat from PVHO??? (elaidic)

I haven't looked at the study yet and since said he hadn't

seen the whole thing I'm assuming I'll have to wait to go to UMass to

retrieve it but I'll comment when I get a chance.

Chris

--

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Find Out the Truth:

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[Guest guest]

> [mailto: ] On Behalf Of Idol

> -

> >It's important not to generalize to broadly from a single study,

> >especially without reading the whole thing, but if we take

> this at face

> >value, it suggests that increasing dietary saturated fat, at

> least in

> >the context of a high-carbohydrate diet, decreases insulin

> sensitivity,

> >but only in overweight individuals.

>

> I think it's fairly well understood (at least in some

> circles) that mixing a lot of fat with a lot of carbs is bad news.

But this isn't a lot of fat; it's only 30%. And it wasn't an increase in fat

that decreased insulin sensitivity; it was a substitution of palmitic acid

for oleic acid.

By the way, what does it mean to mix a lot of fat with a lot of carbs? It

all has to add up to 100%, and if you have something like 40/40/20, I

wouldn't call that " a lot " of either (at least, not by normal standards). Or

do you mean too much in absolute terms? Are you saying that a

high-carbohydrate, low-fat diet is better than one which contains moderate

amounts of both? I always thought that this was just something that naive

Atkins dieters made up to resolve the cognitive dissonance between their

fat-phobia and the apparent success of their diets.

Chris: I'm not telling you not to read the study if you're curious, but

don't do it for my sake.

[Guest guest]

-

>But this isn't a lot of fat; it's only 30%. And it wasn't an increase in fat

>that decreased insulin sensitivity; it was a substitution of palmitic acid

>for oleic acid.

True. I'm guilty of too much skimming in an attempt to catch up on

email. I'll have to look into it further. However, it's definitely

a high-carb diet.

>By the way, what does it mean to mix a lot of fat with a lot of carbs? It

>all has to add up to 100%, and if you have something like 40/40/20, I

>wouldn't call that " a lot " of either (at least, not by normal standards).

I suppose it's a matter of perspective. Since the mainstream view is

that fat should be cut to 30% or less, I think a lot of people would

call 40% " a lot " , but I haven't conducted a survey or anything.

> Or

>do you mean too much in absolute terms? Are you saying that a

>high-carbohydrate, low-fat diet is better than one which contains moderate

>amounts of both?

No, I was talking in terms of percentages of calories.

>I always thought that this was just something that naive

>Atkins dieters made up to resolve the cognitive dissonance between their

>fat-phobia and the apparent success of their diets.

No, it's definitely true that a lot of fat mixed with a lot of carb

is a recipe for failure when trying to lose weight and rectify

metabolic problems. The carbs stimulate insulin and shut of fat

burning, resulting in the fat being stored instead of burned.

That doesn't address this particular study at all, though, as you and

have pointed out. I have to take a proper look at it.

-

[Guest guest]

> No, it's definitely true that a lot of fat mixed with a lot of carb

> is a recipe for failure when trying to lose weight and rectify

> metabolic problems. The carbs stimulate insulin and shut of fat

> burning, resulting in the fat being stored instead of burned.

>

> -

Berardi gets real specific about carbs and fat together, in his

site about nutrition and high athletic performance. Can't remember

which of his nutrition articles but it's something like, if you're

having a high-fat meal, no more than 15 g carbs, and vice versa.

Connie