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trans fat question

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01 / Original posttrans fat questionSlowhand · 5 Apr 2005 02 / This pagePosts 1–11Page 1 of 1 · chronological order 03 / Latest replyPost #11Slowhand · 12 Apr 2005

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General fitness, health and nutrition
Published
5 April 2005
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12 April 2005
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Slowhand
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  1. Original post
    Slowhand
    Archived post
    #1

    Hi all,

    I have a newbie question for you (I am an economist,
    and have nothing more than a novice's knowledge of
    basic nutrition, so apologies for my ignorance!). I am
    hoping one of you gurus can help me out.

    I am working with a database from a dietary survey.
    It lists grams of food consumed by individuals and
    for each food item, and also provides the total fat content
    per gram of the food, total saturated fat content,
    total mono and poly unsaturated fat content, etc.

    Problem is, it does not provide direct information on
    trans fat content per gram of the food, and I am
    interested in knowing this. Would it make
    sense for me to infer the trans fat content as:
    total fat - (saturated fat + monounsaturated +
    polyunsaturated)? Or is there some complication
    that blows this out of the water?

    I would much appreciate any insights.

    Thanks in advance.

    Report
  2. Yibbels
    Archived post
    #2

    My understanding is that hydrogenation, which produces
    trans fat, also produces other nasty compounds.

    Here is an overview of hydrogenation:
    http://en.wikipedia.org/wiki/Hydrogenation

    And, here are 2 overviews of trans fat:
    http://www.bantransfats.com/abouttransfat.html
    http://en.wikipedia.org/wiki/Trans_fat

    Yib

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  3. montygram
    Archived post
    #3

    Consider this: if it were not for processed food, "trans fat" would
    not be an issue. CLA is a trans fat produced by many animals and is
    sold as a health supplement, yet chemically speaking, it is undeniably
    a "trans fat." It's a worthless topic unless terms and phrases are
    defined with scientific pre

    Report
  4. Juhana Harju
    Archived post
    #4

    montygram wrote:
    :: Consider this: if it were not for processed food, "trans fat" would
    :: not be an issue. CLA is a trans fat produced by many animals and is
    :: sold as a health supplement, yet chemically speaking, it is
    :: undeniably a "trans fat." It's a worthless topic unless terms and
    :: phrases are defined with scientific pre

    Actually studies have found mixed results about the health effects of CLA.
    Some of them are posivite, some negative from the point of health.

    --
    Juhana

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  5. MMu
    Archived post
    #5
    Quoted message said:

    interested in knowing this. Would it make
    sense for me to infer the trans fat content as:
    total fat - (saturated fat + monounsaturated +
    polyunsaturated)? Or is there some complication
    that blows this out of the water?

    I would much appreciate any insights.

    It won't work like this.
    "Total Fat" contains more than just triglycerides, thus, if you substract
    saturated, monounsaturated and polyunsaturated fats (trans fats are
    containing either monounsaturated or polyunsaturated fatty acids with a
    trans configuration, so they might be in there already) the rest will not be
    trans fats but, very probably mostly other fat soluable food components.

    Report
  6. MMu
    Archived post
    #6
    Quoted message said:

    Consider this: if it were not for processed food, "trans fat" would
    not be an issue. CLA is a trans fat produced by many animals and is
    sold as a health supplement, yet chemically speaking, it is undeniably
    a "trans fat."

    As the name already says: CLA has conjugated double bonds thus it is
    chemically very different from "ordinary trans fats" which have isolated
    double bonds or (for most) just one at all.

    But I agree in so far that the definition of trans fatty acids is not
    exclusive and also does contain CLA.

    Report
  7. MattLB
    Archived post
    #7
    montygram said:


    Consider this: if it were not for processed food, "trans fat" would
    not be an issue. CLA is a trans fat produced by many animals and is
    sold as a health supplement,

    As a fat loss supplement sure, but not as a health promoting supplement.
    For one thing, CLA increases lipid peroxidation by 50%:

    http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15277146

    so you should be ranting against it.

    Quoted message said:

    yet chemically speaking, it is undeniably
    a "trans fat." It's a worthless topic unless terms and phrases are
    defined with scientific pre

    Precision was that? Trans fat is a precise term when it is the presence
    of a trans double bond in the fat that has the health implications.

    MattLB

    Report
  8. Cubit
    Archived post
    #8

    -but wasn't there a study showing reduced cancer rates with CLA?

    "MattLB" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    montygram said:


    Consider this: if it were not for processed food, "trans fat" would
    not be an issue. CLA is a trans fat produced by many animals and is
    sold as a health supplement,

    As a fat loss supplement sure, but not as a health promoting supplement.
    For one thing, CLA increases lipid peroxidation by 50%:


    http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15277146

    Quoted message said:


    so you should be ranting against it.

    Quoted message said:

    yet chemically speaking, it is undeniably
    a "trans fat." It's a worthless topic unless terms and phrases are
    defined with scientific pre

    Precision was that? Trans fat is a precise term when it is the presence
    of a trans double bond in the fat that has the health implications.

    MattLB

    Report
  9. MMu
    Archived post
    #9
    Quoted message said:

    -but wasn't there a study showing reduced cancer rates with CLA?

    There were a few.. this is one of them:

    Corl BA, Barbano DM, Bauman DE, Ip C.
    cis-9, trans-11 CLA derived endogenously from trans-11 18:1 reduces cancer
    risk in rats.
    J Nutr. 2003 Sep;133(9):2893-900

    Report
  10. MMu
    Archived post
    #10
    Quoted message said:

    http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15277146

    what bothers me a little is that they used olive oil as a placebo.
    would not all-cis-linoleic acid be a better model for comparison..
    especially lipid-oxidation wise?

    Report
  11. Slowhand
    Archived post
    #11

    "MMu" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    It won't work like this.
    "Total Fat" contains more than just triglycerides, thus, if you substract
    saturated, monounsaturated and polyunsaturated fats (trans fats are
    containing either monounsaturated or polyunsaturated fatty acids with a
    trans configuration, so they might be in there already) the rest will not


    be

    Quoted message said:

    trans fats but, very probably mostly other fat soluable food components.

    Thanks, that's most helpful.

    Report

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