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Trans Fat Is Good For You, But Only If It's From Meat and Butter: Vaccenic Acid and the Conjugated Linoleic Acids
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October 10, 2011
11:18 pm
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Chris:

If you look at actual deaths from foodborne illnesses, far more people die from fruits and veggies than from meat.  Example: 21 people died this year from cantaloupes, one from strawberries, and one from Cargill ground turkey.

And if you look at the deadliest outbreaks throughout history:

https://secure.wikimedia.org/wikipedia/en/wiki/Deadliest_foodborne_illness_incidents

Far more people have died from shady Mexican cheese, bean sprouts, cantaloupe, and onions than have died from meat of any kind...and the meat deaths are from things like "cold cuts" and hot dogs.  Even store-bought hamburger doesn't make the list, let alone actual cuts of beef.

I eat everything good bleu rare, too.

JS

October 29, 2011
7:50 pm
Natalia
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Ray Peat:
'When meat is grilled at a high temperature, the normally spaced double bonds in PUFA migrate towards each other, becoming more stable, so that linoleic acid is turned into “conjugated linoleic acid.” This analog of the “essential” linoleic acid competes against the linoleic acid in tissues, and protects against cancer, atherosclerosis, inflammation and other effects of the normal PUFA.' (link)

(I am quite surprised)

October 31, 2011
3:28 am
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Natalia:

That particular statement about linoleic acid converting to CLA
in the presence of grill heat is a) not footnoted and b) seems bogus to
me.  In that case, well-used deep-fryer seed oil ought to be full of
CLA, since the source oil is full of LA -- but I haven't seen any
indication that this is the case. 

First, oil mostly oxidizes (burns) on the grill AFAIK.

Second, the number of possible configurations of 18:2 (linoleic acid) is quite large, and even if isomerization occurred, it seems like the odds of heat randomly happening to produce the one single isomer that we can use (trans-rumenic acid) are relatively low.

I'm open to correction on this issue...but it seems highly fishy to me.

JS

October 31, 2011
8:21 pm
Natalia
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That's why I'm surprised...
It would be too easy for us.
I believe bacteria sences dangerous PUFA and makes it safe...for itself.

June 4, 2012
1:31 pm
Lilia Redwine
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It is wrong!!!!....CLA Supplements:..........2nd paragraph. Safflower oil das not contain CLA. This statment is opposite to the fact that only ruminant produce CLA and Vaccenic acid

June 4, 2012
2:18 pm
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Lilia:

Safflower oil doesn't contain CLA itself: the CLA is produced chemically, via alteration of the linoleic acid it contains.  That's why I said "Most CLA supplements are derived from safflower oil," and that statement is correct.  

The reason safflower oil is usually used to make CLA supplements is that it's both cheap and very high in linoleic acid.  However, other oils, such as soybean or corn oil, are occasionally used.

JS

February 6, 2014
8:32 pm
Sara
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February 9, 2014
12:59 am
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Sara:

If grazing animals caused global warming, the planet would have drowned tens of millions of years ago.  There were somewhere between 20 and 80 million bison on the Great Plains alone before the white man colonized America...and the entire Pleistocene was a major cooling trend, culminating in the Ice Ages.

Also, did you know that rice paddies produce at least as much methane as cow burps or farts?  (Estimates vary, but they're of similar magnitude.)

Yes, factory farming is destructive for other reasons, and I oppose it too: corn isn't the natural diet of cattle any more than it's the natural diet of humans.  But propaganda videos aren't a valid argument.

JS

March 28, 2014
11:02 pm
Clint
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I think we need to understand that we have only had spears and fire for the last 400,000 years and before then would have eaten little to no animal foods. I ask you to really think about it and look in the mirror and ask ourselves how could i have possibly caught and eaten animal foods before then? You, yes YOU are a herbivore in every way shape and form!

April 1, 2014
10:34 pm
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Clint:

We've used sharp rocks to obtain meat for at least 3.4 million years, and made our own sharp rocks for at least 2.6 million years.  And chimpanzees hunt and eat monkeys without using any tools at all.

JS

September 13, 2019
4:48 am
Morton Joynt
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Hey there, thanks for the post. I love the content I'm getting.

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