Latest example of the foolish "saturated fat is bad" mantra.

[monty1945]

>From a recent report:

Researchers " examined animals infused with unsaturated oils
and found that they became insulin resistant without any rise
in ceramide..."

That is consistent with the molecular-level evidence. But
then: "The team also found that infusion of lard oil, a
saturated fat, caused the mice to become less responsive to
insulin..."

Lard is about 40% saturated these days. It is not a "saturated
fat" to anyone who possesses basic common sense. Why did they
refrain from using fresh coconut oil,which is about 92%
saturated fatty acids? If they had, they could make a much
stronger case for the claim that "saturated fat" causes
insulin resistance. There is no insulin resistance on native
peoples who have stayed on their native diets, which are very
rich in coconut. The WHO statistics are there for everyone to
see, including this ignorant "team" of researchers.

Ironically, the title of this report is "Stress-signaling Fat
Is A Culprit Behind Insulin Resistance." The problem is that
saturated fatty acids do not "signal," but need to be changed
by the body into molecules capable of signaling (such as the
Mead acid, which is polyunsaturated) if the person is on a fat
free diet for a certain period of time. Their claim is a
scientific impossibility. However, due to the "loose"
nutritional language, they are able to convince themselves of
clearly false notions.

[monty1945]

Source for the quoted passages in the post above:
http://www.sciencedaily.com/releases/2007/03/070307075807.htm

Correction: "native peoples" should be "certain native
peoples."

[Mattlb]

On Mar 7, 11:11 pm, monty1...@lycos.com wrote:
> Researchers " examined animals infused with unsaturated oils
> and found that they became insulin resistant without any
> rise in ceramide..."
>
> That is consistent with the molecular-level evidence.

Can you explain how unsaturated fatty acids cause insulin
resistance, at the molecular level?

> But then: "The team also found that infusion of lard oil, a
> saturated fat, caused the mice to become less responsive to
> insulin..."
>
> Lard is about 40% saturated these days. It is not a
> "saturated fat" to anyone who possesses basic common sense.

Differences due to use of lard can be attributed to the bit
that's different between lard and soy oil. Since lard has
over twice as much SFA and a sixth of the PUFA of soy oil,
either you say it's the increased SFA to blame, or the
decreased PUFA that's to blame. Given that the latter would
destroy your world view, you have to choose the former.

There is another reason for chooisng the former though: the
starting point for synthesis of ceramide is palmitic acid - a
saturated fatty acid.

> Ironically, the title of this report is "Stress-signaling
> Fat Is A Culprit Behind Insulin Resistance." The problem is
> that saturated fatty acids do not "signal,"

Try reading the article. Ceramide is the stress-signalling fat
the title refers to.

> Their claim is a scientific impossibility.

No, just your usual miscomprehension at work.

> due to the "loose" nutritional language, they are able to
> convince themselves of clearly false notions.

You accuse others of "loose nutritional language"? The
mind boggles.

MattLB

[monty1945]

I've refuted these MattLB claims many times in the past. One
thing I'll mention here is that lard oil is actually much more
like olive oil, and so what they have demonstrated is that
"monounsaturated fat" is very bad, at least potentially
(depending upon factors such as antioxidant protection and
cooking techniques), which is the exact opposite of the
current nutritional dogma.

Have you decided to take me up on my experimental offer, yet,
MattLB? Or are you just doing your usual "hit and run,"
industry shill gig?

[monty1945]

"In adults, insulin resistance has been associated with
dietary polyunsaturated fatty acids..."

Source: Diabetologia. 2002 Mar;45(3):349-55.

Try doing some actual research once in a while.

[monty1945]

"We discuss the concept that the two essential (not
produced by the body and obtained exclusively through the
diet) polyunsaturated fatty acid families-n-6 and n-3-may
play a role in the pathogenesis of insulin resistance
through inflammatory pathways. Linoleic acid, the major n-6
fatty acid, is metabolized into pro-inflammatory
arachidonic acid..."

Source: Metabolic Syndrome and Related Disorders. Jun 2004,
Vol. 2, No. 2 : 124 -128.

Now some argue that loading up your body with fish oil will
prevent all the ill effects of arachidonic acid, whereas I
avoid all major sources of PUFAs and see only benefits (for
over 5 years now), though according to the nutritionists, I
should have died a while back, after suffering terrible
"deficiency syptoms." If MattLB thinks I am wrong, he can take
me up on my offer:

One group of health adult rats is fed a diet of "normal
calories," with 30% fat from canola oil and fish oil, bought
from a supermarket, with only basic multi-vitamin and mineral
supplement. The other group is exactly the same, except with
30% coconut oil of my choice (purchased from a retailer). The
coconut oil group should die much sooner. If it does not,
MattLB pays for all expenses. If they do, then I will pay for
all expenses.

I am waiting, MattLB, for you to finally put your assets where
your oral cavity is located.