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Trans Fats Are Bad, Aren't They?
Science News ^ | 12-16-2006 | Janet Raloff

Posted on 12/28/2006 4:36:20 PM PST by blam

Trans Fats Are Bad, Aren't They?

Janet Raloff

The media have been rife with reports on trans fats since New York City's Board of Health announced it would phase out these fats in restaurants and other food-service establishments. And that's good news for most consumers because trans fats can pose a double whammy for the heart. Not only can they hike a person's bad cholesterol even more than saturated fats can, but they also reduce concentrations of the good cholesterol in blood.

CHEESY EXCEPTION. The trans fats known as conjugated linoleic acids (CLAs), which form naturally in animals, show up in meats and dairy products, such as this cheese. It's not the type of fat that the New York City ban is targeting. Photodisc

Not surprisingly, these largely synthetic fats—designed to stay solid at room temperature, as saturated fats do, and typically used in fried foods and bakery items—have been linked to ailments ranging from coronary heart disease to diabetes (SN: 11/10/01, p. 300).

So, good riddance. Right?

Well, as with so much in science, there are caveats. And there's a big one with the trans fats. Although the vast majority of these fats are unhealthy, there is a minority that are fine to eat and may even prove beneficial.

Known as conjugated linoleic acids (CLAs), some of these trans fats occur naturally in dairy products and meat, especially milk and butter. Others form as a result of chemical processing or cooking. A growing number of studies have demonstrated that, at least in animals, these unusual fats fight a host of chronic health conditions from heart disease to diabetes to cancer (SN: 3/3/01, p. 136). Most recently, several CLAs have shown promise in moderating the runaway inflammation that underlies arthritis, asthma, and even lupus (see Inflammation-Fighting Fat).

A new line of research now aims at naturally increasing the concentrations of these unusual trans fats in foods such as milk and cheeses. Michael W. Pariza of the University of Wisconsin–Madison, who discovered the beneficial alter ego of CLA trans fats more than 2 decades ago, suspects that one day they may even be added to foods to fortify their healthiness.

At present, however, most people take in minimal amounts of CLAs.

Nevertheless, data on the potential benefits of these unusual trans fats have been so compelling that the Food and Drug Administration exempted them from the new trans-fat labeling law that went into effect this year (see No Hiding Most Trans Fats). That law had been intended to steer people away from bad fats.

Meanwhile, research continues to malign the synthetic trans fats being targeted by New York City and other health departments. For instance, a major review of the health implications of current U.S. consumption patterns of trans fats appeared in the April 13 New England Journal of Medicine. Walter C. Willett of the Harvard School of Public Health, in Boston, and his colleagues reported that some 2 to 3 percent of people's daily calories typically come from the synthetic trans fats.

Willett's team found that largely eliminating bad trans fats in U.S. diets could improve people's blood cholesterol enough to cut heart attacks and other cardiovascular problems by 3 to 6 percent. That would be up to 72,000 fewer such adverse events per year, the team said. Even better, other advantages from such a dietary shift, such as improved immune systems, could eliminate another 150,000 or so adverse heart events per year.

The team's report also briefly addresses CLAs and notes that they aren't the kind of trans fats that researchers are worried about.

There is one more important caveat about CLAs: As fats, they're high in calories. That means that, as with all energy-dense foods, consumption of their food sources should be kept within moderation.


TOPICS: Food; Health/Medicine
KEYWORDS: cholestoral; fat; fats; trans
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1 posted on 12/28/2006 4:36:22 PM PST by blam
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To: blam

The National Academy of Science siad that hydrogenated oil is unsafe at any level. I defer to this august body. I don't second guess scientists who have no agenda.


2 posted on 12/28/2006 4:40:55 PM PST by at bay ("We actually did an evil....." Eric Schmidt, CEO Google)
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To: at bay

Back to the lard tortillas?


3 posted on 12/28/2006 4:42:42 PM PST by ndt
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To: blam

Dr. Melik: ... wheat germ, organic honey and... tiger's milk.

Dr. Aragon: Oh, yes. Those are the charmed substances that some years ago were thought to contain life-preserving properties.

Dr. Melik: You mean there was no deep fat? No steak or cream pies or... hot fudge?

[chuckling] Dr. Aragon: Those were thought to be unhealthy... precisely the opposite of what we now know to be true.

Dr. Melik: Incredible!


4 posted on 12/28/2006 4:42:49 PM PST by Shermy
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To: blam
Not only are trans fats not bad, but cholesterol is something to be desired. Look at the "nurses study" you idiots. If you are driven by truth and facts you can't help but find that fats aren't bad (they're good). If you want to parrot the idiocy sold by the media get lost, I've no time for you.

Hey, if you believe that fats clog the veins why don't you believe that carrots and potatoes do the same thing? Examine the facts, idiot, though it may be hard to undo 30 years of nonsense.
5 posted on 12/28/2006 4:42:59 PM PST by Jaysun (I've never paid for sex in my life. And that's really pissed off a lot of prostitutes.)
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To: ndt
"Back to the lard tortillas?"

Mmmmmmmm.....sounds yummy!

6 posted on 12/28/2006 4:47:13 PM PST by traditional1
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To: blam
As one of eight kids ... most of us approx. two years apart ... I grew up with Mrs. Philberts margerine on the table.

When I ate at my best friend's house .. son of a doctor ... and had real butter ... I vowed .. when I grow up, I'm eating nothing but butter.

I get whole milk from a local farm and love it cold all year 'round and I buy mothing but butter for cooling, spreading and getting gum out of my granddaughter's hair.

I recently had triple hernias corrections and while they did the intake they asked all the usual ... high blood pressure? Nope. Diabetes? Nope ... etc.

All I take is a multi-vitamin.

Do years of butter and whole milk have anything to do with this? I don't know, but there ain't nuthin' like a couple of slices of warm toast slathered in butter and a glass of cold milk.

Oh yeah, I'm 59.

7 posted on 12/28/2006 4:47:41 PM PST by knarf (Islamists kill each other ... News wall-to-wall, 24/7 .. don't touch that dial.)
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To: blam

I read a book in the 1970 titled EVERYTHING YOU EVER WANTED TO KNOW ABOUT NUTRITION by David Reuben MD....
He said you shouldn't eat margarine, but should eat butter.
He said cholesterol is not the poison we all think it is.
I am waiting for that point to be proven true, too.


8 posted on 12/28/2006 4:47:45 PM PST by buffyt (~Merry Christmas ~ Happy New Year~)
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To: blam

From my cold dead hands will they pry my street-cart Salty Pretzel .........


9 posted on 12/28/2006 4:56:38 PM PST by Mr_Moonlight
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To: blam

....calling mayor bloomy.....calling mayor bloomy....someone is saying 'trans fat'....calling mayor bloomy.


10 posted on 12/28/2006 4:57:26 PM PST by HarleyLady27 (My ? to libs: "Do they ever shut up on your planet?" "Grow your own DOPE: Plant a LIB!")
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To: knarf
"Oh yeah, I'm 59."

Ha, I'm 63 and I went to a urologist for a urinary problem and it turns out my urinary problem was my cholestoral lowering medicine. He said the 'cholestoral problem' was way over-blown.

I dumped the cholestoral medicine and I'm peeing like a race horse again, ahem.

11 posted on 12/28/2006 5:01:28 PM PST by blam
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To: blam
How about they cook. . .'we decide'. They market. . .we still decide. . .Let's see; how many years has the Heart Association. . .Doctors et al and ad nauseum been saying. . .eat margarine NOT butter!

Meantime, health periodicals have been decrying 'trans fats' for years. And then the McDonald's brouha(ha) years ago whereby they were coerced into changing the fat used for their french-fries - a trans-fat combination no doubt.. .

The whole thing is stupid; and worse; dangerous, as we allow Government more power to decide what we can have for dinner. . .lunch or breakfast, for that matter.

12 posted on 12/28/2006 5:16:23 PM PST by cricket (Save a Terrorist - join the Democrats/Live Liberal Free; or suffer their consequences)
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To: cricket

"whereby they were coerced into changing the fat used for their french-fries"

So coerced they never even changed as they promised they would.


13 posted on 12/28/2006 5:24:06 PM PST by at bay ("We actually did an evil....." Eric Schmidt, CEO Google)
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To: cricket
Butter, eggs (the incredible, edible), peanut butter, meat ... all staples of my diet.

I like Ted's kill it n' grill it technique with the meat.

14 posted on 12/28/2006 5:31:41 PM PST by knarf (Islamists kill each other ... News wall-to-wall, 24/7 .. don't touch that dial.)
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To: blam

All the science does not agree. Shame on Bloomberg pushing this no trans-fat thing in NYC. The idea will take off. Our Politicians will push this through everywhere. Why?
Thinking maybe a lawsuit against big trans-fat makers everywhere. Lots of money to be made. Lawyers wil start class action suits for anyone who ate anything with trans-fats before 2006 and cities, towns and lawyers will all be rich. Cynical- yes. One more point, what about personal choice? Freedoms lost, one issue at a time.


15 posted on 12/28/2006 6:18:13 PM PST by mojo114
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To: mojo114

" Freedoms lost"

Waaah. Oh wait, you can still eat Crisco straight from the jar.


16 posted on 12/28/2006 7:26:20 PM PST by at bay ("We actually did an evil....." Eric Schmidt, CEO Google)
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To: at bay
They did change. . . they have used for the past three-four years, a a trans-fat reduced formula; whereby they cut their use of trans fats almost by half. I remember the law suit by vegetarian/sikhs/hindus(?) all or some/whatever. . .and do not know if that was because this was not an over-night effort but one that took time to actually implement in all restaurants; and before ever going to other world markets.

( Or did they drop some fallow in there for flavoring. . .do not remember details; save McDonalds 'gifted' a number of vegetarian religious organizations for their 'mistake'. as they lost the lawsuit or maybe they mediated. . . )

17 posted on 12/29/2006 5:08:56 AM PST by cricket (Save a Terrorist - join the Democrats/Live Liberal Free; or suffer their consequences)
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To: at bay; cricket
just scanning through and 'fallow' caught my attention. . .ahhh; too fast for words sometimes; of course that is 'tallow'. . .no 'f' in the word, anywhere. . .
18 posted on 12/29/2006 7:54:15 AM PST by cricket (Save a Terrorist - join the Democrats/Live Liberal Free; or suffer their consequences)
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To: cricket

they have used for the past three-four years, a a trans-fat reduced formula

Sorry, you are mistaken. They promised to but never did.


19 posted on 12/29/2006 5:18:44 PM PST by at bay ("We actually did an evil....." Eric Schmidt, CEO Google)
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To: Shermy

LOL! And don't forget to inhale the smoke deep into the lungs...


20 posted on 12/29/2006 8:03:05 PM PST by SunkenCiv (It takes a village to mind its own business. https://secure.freerepublic.com/donate/)
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