General fitness, health and nutrition · Public discussion

Re: Vitamin C mega study

Started by Peter Moran · · Last activity · 2 posts · 301 views

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General fitness, health and nutrition
Published
9 February 2005
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10 February 2005
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Peter Moran
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  1. <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    Hi,
    This study was done by the very anti-supplement epidemiology
    team led be Dr. Charles Hennekins at Harvard University. I have
    commented on their bias and exposed their methods several times. The
    nine studies they mention are for all practical intents and purposes
    only their own large, on going health professional studies which have
    been reported on hundreds of times for about 15 years. They have been
    sitting on the data for hi dose supplementation of C for about a decade
    and even now are holding back data on the long term useage as well as
    combined use of C and E. They did mention a combination of C and E in
    the full text, but only to say there was no effect without giving the
    real numbers. The 25% reduction in risk the claim for over 700 mg daily
    doses includes their large study on nurses which had only a small
    benefit. It would seem then that the benefit for male health
    professionals, healthy at base line would be a good bit better, and for
    those who continued to take it for over ten years better still. I would
    guess better than 50%. Maybe someday they will come completely clean.
    I
    will give them credit for going this far. It has for a long time been a
    creedence of the medical establishment that epidemiological studies
    show only a benefit of avoiding frank deficiencies of vitiamins. This
    paper taken with four large clinical intervention trials I posted
    falsifies that position for vitamin C. C now joins the ranks with the
    B's and K to have ample evidence for sensational health benefits of
    mega doses.
    In a recent post I opined that I fancied I could see the
    beginning of a turning of the corner on the anti-supplement attitude of
    the very mainstream N Y Academy of Sciences. Perhaps this is another
    datum that points in that direction. Surly they can not continue to
    deny the obvious much longer.

    "The obvious" to whom? And on what basis? Only recently have the results
    of well-designed prospective controlled interventional studies started to
    come through and they have mostly shown no benefit, conflicting results,
    or nowhere near the benefits being claimed by megavitamin enthusiasts such
    as Linus Pauling, or even those suggested by earlier uncontrolled
    observational studies, wherein vitamin supplementation may merely have acted
    as a surrogate measure of other healthier lifestyle choices. I am not
    at all sure what this article adds, as it does not appear to have been based
    upon controlled studies.

    Inform me further if you wish. I am open to correction, so long as
    allegations of undue bias and conspiracy are not being used to explain why
    the evidence from a great deal of research looks the way it does. That
    assumes that the right answer is known to you via some other mechanism than
    an appraisal of the evidence, and you will need to divulge what that is.
    There is no question that skepticism about the early overblown claims of
    vitamin promoters and their supporters has been largely justified.

    Peter Moran

  2. Hi,

    Peter Moran said:

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

    Quoted message said:

    Hi,
    This study was done by the very anti-supplement


    epidemiology

    Quoted message said:
    Quoted message said:

    team led be Dr. Charles Hennekins at Harvard University. I have
    commented on their bias and exposed their methods several times.


    The

    Quoted message said:
    Quoted message said:

    nine studies they mention are for all practical intents and


    purposes

    Quoted message said:
    Quoted message said:

    only their own large, on going health professional studies which


    have

    Quoted message said:
    Quoted message said:

    been reported on hundreds of times for about 15 years. They have


    been

    Quoted message said:
    Quoted message said:

    sitting on the data for hi dose supplementation of C for about a


    decade

    Quoted message said:
    Quoted message said:

    and even now are holding back data on the long term useage as well


    as

    Quoted message said:
    Quoted message said:

    combined use of C and E. They did mention a combination of C and E


    in

    Quoted message said:
    Quoted message said:

    the full text, but only to say there was no effect without giving


    the

    Quoted message said:
    Quoted message said:

    real numbers. The 25% reduction in risk the claim for over 700 mg


    daily

    Quoted message said:
    Quoted message said:

    doses includes their large study on nurses which had only a small
    benefit. It would seem then that the benefit for male health
    professionals, healthy at base line would be a good bit better, and


    for

    Quoted message said:
    Quoted message said:

    those who continued to take it for over ten years better still. I


    would

    Quoted message said:
    Quoted message said:

    guess better than 50%. Maybe someday they will come completely


    clean.

    Quoted message said:
    Quoted message said:

    I
    will give them credit for going this far. It has for a long time


    been a

    Quoted message said:
    Quoted message said:

    creedence of the medical establishment that epidemiological studies
    show only a benefit of avoiding frank deficiencies of vitiamins.


    This

    Quoted message said:
    Quoted message said:

    paper taken with four large clinical intervention trials I posted
    falsifies that position for vitamin C. C now joins the ranks with


    the

    Quoted message said:
    Quoted message said:

    B's and K to have ample evidence for sensational health benefits of
    mega doses.
    In a recent post I opined that I fancied I could see the
    beginning of a turning of the corner on the anti-supplement


    attitude of

    Quoted message said:
    Quoted message said:

    the very mainstream N Y Academy of Sciences. Perhaps this is


    another

    Quoted message said:
    Quoted message said:

    datum that points in that direction. Surly they can not continue to
    deny the obvious much longer.

    "The obvious" to whom? And on what basis? Only recently have the


    results

    Quoted message said:

    of well-designed prospective controlled interventional studies


    started to

    Quoted message said:

    come through and they have mostly shown no benefit, conflicting


    results,

    The conflicting results are: small doses--little or no proven benefit.
    Hi doses-- beneficial in men, but variable in women. Haptoglobin type
    and diabetic status seem to be factors. On this basis a recommendation
    of hi doses in men is justified.

    Quoted message said:

    or nowhere near the benefits being claimed by megavitamin enthusiasts


    such

    Quoted message said:

    as Linus Pauling, or even those suggested by earlier uncontrolled
    observational studies, wherein vitamin supplementation may merely


    have acted

    Quoted message said:

    as a surrogate measure of other healthier lifestyle choices. I


    am not

    Quoted message said:

    at all sure what this article adds, as it does not appear to have


    been based

    Quoted message said:

    upon controlled studies.

    Altho mentioned in my post, it may not have been clear enough that this
    paper extends the well known benefits shown in epidemiological studies
    to hi doses (over 700 mg). Previous studies had only shown the
    detriments of low doses, or frank deficiency. Below I will give a
    reference that treats with gold standard, placebo controlled,
    randomized, clinical trials.

    Quoted message said:


    Inform me further if you wish. I am open to correction, so long as
    allegations of undue bias and conspiracy are not being used to


    explain why

    Quoted message said:

    the evidence from a great deal of research looks the way it does.


    That

    Quoted message said:

    assumes that the right answer is known to you via some other


    mechanism than

    Quoted message said:

    an appraisal of the evidence, and you will need to divulge what that


    is.

    Quoted message said:

    There is no question that skepticism about the early overblown claims


    of

    Quoted message said:

    vitamin promoters and their supporters has been largely justified.


    This is the very thing I have questioned, and have in fact proven the
    contrary using the same criteria that is used to approve drugs. Below I
    give the references for my claim.

    On Nov, 16 '04 I posted a piece in sci.life-extension
    summarizing the placebo controlled, randomized, clinical intervention
    trials that have been conducted on vit. C taken with various other
    supplements such as vit. E. My findings were that whenever C and E are
    taken at a ratio of about two parts C to E or higher, the results are
    always positive in men, moderately positive for low doses and
    sensationally positive for hi doses. The benefits seen are fewer heart
    attacks and longer life span.
    Of most interest are the four hi dose trials that have been
    conducted in men. They show 47% less mortality and huge decreases in
    the rate of progression of atherosclerosis. There are no other
    randomized trials with this regimen. None have been overlooked. I've
    made this claim repeatedly in a ng which includes quite a few very well
    read people including doctors and published scientific researchers.
    I've mailed the claim to researchers with pertnenent publications. I
    failed to mention three other trials I know of with poor methodology
    that hint at even better results. Hi dose vit. C has been used in
    seven trials, four good ones and failed to show results in none.
    If a drug had seen equivalent testing with equivalent
    results it would have FDA approval by now and be subject to aggressive
    marketing with wide spread acceptance. About half of the American
    public is now using supplements. That's maybe 90% of those who care
    about their health. Vitamins C and E are among the biggest sellers.
    People are turning away from their doctors to their postmen and
    neighbors for advice. The younger, more nimble minded doctors are
    following the lead of their patients in this matter. There is good,
    recent evidence that a sizable minority of the population will be hurt
    by this regimen. (See my recent posts on this. Make the search for
    vitamin C with Thomas Carter as author.) Can anyone provide an example
    of a bigger failure in leadership? More important and to the point,
    can anyone post evidence that casts doubt on the facts I claim.? If the
    facts are not in dispute we can all form our own opinions and profit or
    suffer as may be.
    The article I posted can be found at:
    http://groups-beta.google.com/group/sci.life-extension/browse_frm/thread/f3ddde54d44c2cc5/7e3cb7d5c53b5edc?q=A+comprehensive,+recent+mega+review+of+vitamin+E+clinical++author:Thomas+author:Carter&_done=%2Fgroups%3Fas_q%3DA+comprehensive,+recent+mega+review+of+vitamin+E+clinical+%26num%3D50%26scoring%3Dr%26hl%3Den%26ie%3DUTF-8%26as_epq%3D%26as_oq%3D%26as_eq%3D%26as_ugroup%3D%26as_usubject%3D%26as_uauthors%3DThomas+Carter%26lr%3D%26as_drrb%3Dq%26as_qdr%3D%26as_mind%3D1%26as_minm%3D1%26as_miny%3D1981%26as_maxd%3D10%26as_maxm%3D2%26as_maxy%3D2005%26safe%3Doff%26&_doneTitle=Back+to+Search&&d#7e3cb7d5c53b5edc
    If the link doesn't work go to the advanced search page and
    and look for
    comprehensive, recent mega review of vitamin E clinical trials

    with Thomas Carter as the author.

    Thomas

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