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Vitamin D Supplementation

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General fitness, health and nutrition
Published
13 January 2006
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14 January 2006
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Newb
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  1. I know the best way to get vitamin D is from the sun. But the fact is
    I am a habitual night owl and frequently miss the sunlight/days.
    Especially in the wintertime when the sun is not out for very long. So
    I have a few questions regarding vitamin D supplementation.

    1. I recently bought some cod liver oil realizing it was probably one
    of the best supplement s for vitamin D. However it also packs a mean
    vitamin A punch. Which I don't really need. So what is a safe
    dosing method for using this supplement? By the way I have Carlson's
    Norwegian Cod Liver Oil if that matters to anyone who's used this
    brand.

    2. I also have a multivitamin with at least a 400IU dose of vitamin D.
    By the way one teaspoonful of Carlson's Cod Liver Oil has the same
    amount. Which is the recommended serving. The Vitamin A in the Cod
    Liver Oil can be any where from 500 to 1200IU per serving. There is no
    Vitamin A in the multivitamin. Brand name Every Man's One Daily by
    New Chapter. Which would you recommend taking?

    3. Is there any other vitamin, mineral, herb etc? That I should be
    concerned about taking when I'm constantly missing the
    sunlight/daytime?

    4. So if you like the Cod Liver approach how often should I use it?
    Also should I get my vitamin D levels tested before I begin just to
    make sure?

    5. I mean I have no problem popping back the water-soluble vitamins.
    But when it comes to taking something that can be healthy in the right
    dose. But toxic in the wrong dose or when used too much. I tend to be
    concerned. Am I right in feeling this way?

    6. Any other supplements you would recommend that I might not be
    familiar with?

    Thanks in advance to all who response to my post. I've bought a lot
    of supplements in the past and I am now making sure to do my research
    and ask questions before I fork out the dough.

  2. http://www.cholecalciferol-council.com/

    Best known researchers: A. Vieth;
    Sample news letter from above site.
    http://www.cholecalciferol-council.com/paradoxes.pdf
    MikeV

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

    Quoted message said:

    I know the best way to get vitamin D is from the sun. But the fact
    is
    I am a habitual night owl and frequently miss the sunlight/days.
    Especially in the wintertime when the sun is not out for very
    long. So
    I have a few questions regarding vitamin D supplementation.

  3. Omission: The other well known researcher is Michael Holick.
    "Newb" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    I know the best way to get vitamin D is from the sun. But the fact
    is
    I am a habitual night owl and frequently miss the sunlight/days.
    Especially in the wintertime when the sun is not out for very
    long. So
    I have a few questions regarding vitamin D supplementation.

    1. I recently bought some cod liver oil realizing it was probably
    one
    of the best supplement s for vitamin D. However it also packs a
    mean
    vitamin A punch. Which I don't really need. So what is a safe
    dosing method for using this supplement? By the way I have
    Carlson's
    Norwegian Cod Liver Oil if that matters to anyone who's used this
    brand.

    2. I also have a multivitamin with at least a 400IU dose of
    vitamin D.
    By the way one teaspoonful of Carlson's Cod Liver Oil has the same
    amount. Which is the recommended serving. The Vitamin A in the
    Cod
    Liver Oil can be any where from 500 to 1200IU per serving. There
    is no
    Vitamin A in the multivitamin. Brand name Every Man's One Daily
    by
    New Chapter. Which would you recommend taking?

    3. Is there any other vitamin, mineral, herb etc? That I should
    be
    concerned about taking when I'm constantly missing the
    sunlight/daytime?

    4. So if you like the Cod Liver approach how often should I use
    it?
    Also should I get my vitamin D levels tested before I begin just
    to
    make sure?

    5. I mean I have no problem popping back the water-soluble
    vitamins.
    But when it comes to taking something that can be healthy in the
    right
    dose. But toxic in the wrong dose or when used too much. I tend
    to be
    concerned. Am I right in feeling this way?

    6. Any other supplements you would recommend that I might not be
    familiar with?

    Thanks in advance to all who response to my post. I've bought a
    lot
    of supplements in the past and I am now making sure to do my
    research
    and ask questions before I fork out the dough.

  4. a

  5. Fri, 13 Jan 2006 13:06:55 GMT in article
    <[email hidden]> "MikeV"

    Quoted message said:

    Omission: The other well known researcher is Michael Holick.

    Don't forget Robert P Heaney.

    --
    Matti Narkia

  6. Newb said:

    I know the best way to get vitamin D is from the sun. But the fact is
    I am a habitual night owl and frequently miss the sunlight/days.
    Especially in the wintertime when the sun is not out for very long. So
    I have a few questions regarding vitamin D supplementation.

    The sun will damage your skin and cause skin cancer. Get your vitamin D
    from supplements.

    Quoted message said:

    2. I also have a multivitamin with at least a 400IU dose of vitamin D.
    By the way one teaspoonful of Carlson's Cod Liver Oil has the same
    amount. Which is the recommended serving. The Vitamin A in the Cod
    Liver Oil can be any where from 500 to 1200IU per serving. There is no
    Vitamin A in the multivitamin. Brand name Every Man's One Daily by
    New Chapter. Which would you recommend taking?

    You can get vitamin D in 1,000 unit supplements without vitamin A.
    Vitamin D is safe up to 5,000 units for most people, but 1,000 units
    should meet your needs.

    --
    Ron

  7. Ron Peterson said:

    You can get vitamin D in 1,000 unit supplements without vitamin A.
    Vitamin D is safe up to 5,000 units for most people, but 1,000 units
    should meet your needs.

    The following website
    http://health.dailynewscentral.com/content/view/0002054/31/ says:

    More Vitamin D for Everyone, Cancer Researchers Urge
    Written by Rita Jenkins| 14 January, 2006 00:07 GMT

    Cancer prevention specialists have concluded that taking 1,000
    international units (IU) of vitamin D3 per day may lower an
    individual's risk of developing certain cancers, including breast,
    colon, prostate, and ovarian, by up to 50 percent.
    Researchers at the Moores Cancer Center at the University of
    California, San Diego call for prompt public health action to increase
    intake of vitamin D3 as an inexpensive tool for prevention of diseases
    that claim millions of lives each year.

    Vitamin D Deficiency Linked to Increased Mortality Rates

    "The high prevalence of vitamin D deficiency, combined with the
    discovery of increased risks of certain types of cancer in those who
    are deficient, suggest that vitamin D deficiency may account for
    several thousand premature deaths from colon, breast, ovarian and other
    cancers annually," according to the Moores Center research group.

    "Breast cancer will strike one in eight American women in their
    lifetime, notes co-author Cedric F. Garland. "Early detection using
    mammography reduces mortality rates by approximately 20 percent. But
    use of vitamin D might prevent this cancer in the first place."

    "African-American women who develop breast cancer are more likely to
    die from the disease than White women of the same age, notes Garland.
    African-Americans also have substantially poorer survival rates for
    colon, prostate and ovarian cancers as well." After making
    adjustments for socioeconomic status and access to healthcare,
    researchers conclude the difference in survival rate is linked to
    vitamin D deficiency.

    The institution of a national public health action is strongly
    indicated, based on twenty-five years of worldwide studies on the
    benefits of vitamin D, Garland concludes. "Primary prevention of
    these cancers has largely been neglected, he suggests, but we now have
    proof that the incidence of colon, breast, prostate, and ovarian cancer
    can be reduced dramatically by increasing the public's intake of
    vitamin D."

    Supplements Recommended

    Many people are deficient in vitamin D because it is difficult to reach
    the recommended daily dosage without taking supplements, according to
    Garland. He notes that foods such as milk, yogurt, cheese, and orange
    juice are fortified with vitamin D, but not in sufficient amounts to
    readily supply the daily target. "A glass of milk, for example, has
    only 100 IU," he points out.

    Sunlight is an abundant source of vitamin D in summer months, since it
    plays a direct role in the body's production of the vitamin. But
    Garland warns, "Sun exposure has its own concerns and limitations. We
    recommend no more than 15 minutes of exposure daily over 40 percent of
    the body, other than the face, which should be protected from the sun."
    Some fair-skinned people shouldn't try to get any vitamin D from the
    sun, he cautions. On the other hand, dark-skinned people may need more
    sun exposure to produce adequate amounts of vitamin D, because their
    heightened skin pigmentation prevents absorption of sunlight.

    Residents of the northern United States are at higher risk of
    deficiency during the winter months.

    Expanded use of vitamin D supplements should not be delayed, according
    to the authors. The proposed intake of 1,000 IU is half the safe upper
    intake established by the National Academy of Sciences. It is estimated
    that the cost will be about five cents per day.

    --
    Ron

  8. 1. How much vitamin D should I take?

    Answer:

    Before I answer, I have a few questions for you. Where do you live
    (latitude)? How much do you weigh? What skin type do you have?
    How much do you go into the sun? How much do you get in your diet?
    How much do you get in supplements? What is your 25-hydroxy-vitamin
    D level? During what season-of-the-year was it obtained?

    You see, the answer is different for everyone. The question also
    assumes we know the ideal vitamin D blood level. We don't know for
    sure; around 50ng/ml is the best current guess.

    However, an easy answer is: 2,000 units a day. The government says
    2,000 units of vitamin D a day is safe for all adults to take
    without a doctor's supervision. Life Extension Foundation sells an
    inexpensive pharmaceutical grade of vitamin D. Two-hundred and
    fifty of the 1,000 unit capsules cost about ten bucks. Your local
    health food store should also carry 1,000 unit capsules. Just be
    sure they don't contain any vitamin A. Beta-carotene is OK but
    preformed retinols (vitamin A) interfere with vitamin D's function.
    I do not advise cod liver oil; if you just have to take it, don't
    take more than a teaspoon per day. Get your omega-3s from
    molecularly distilled fish body oils (Trader Joe's) or by eating
    wild salmon or sardines; get your vitamin D by taking vitamin D or
    by going into the sun, or by combining both.

    J Nutr. 1999 Dec;129(12):2246-50.

    J Bone Miner Res. 2001 Oct;16(10):1899-905.

    J Nutr. 2005 Jul;135(7):1647-52.

    Remember Professor Robert Heaney's recent warning: two thousand
    units a day will only get about 80% of Americans to a vitamin D
    level of 35 ng/ml or higher. The 20% still lower than that are
    almost all African American or old or obese. 2,000 units a day will
    not be enough for some people.

    J Steroid Biochem Mol Biol. 2005 Oct;97(1-2):13-9.

    For now, if you take more than 2,000 units a day, you should do so
    either because you are under the care of a knowledgeable health care
    practitioner (good luck finding one), or because you know what you
    are doing. I personally take no vitamin D in the late spring,
    summer, or early fall because I frequently go into the sun. I take
    5,000 units a day in the winter but I know what my vitamin D level
    is because I get it checked several times a year. If I had cancer
    or heart disease or Alzheimer's disease or multiple sclerosis or a
    hundred other common diseases, I might take more than 5,000 units a
    day but I'd check my calcium and vitamin D levels even more often.
    I'd also follow my doctors advice about standard medical treatment.

    Keep in mind that if you use a sunlamp or a tanning parlor once a
    week during the winter, you don't have to worry about blood tests
    because your body will maintain adequate vitamin D blood levels.
    Just don't get burned.

    Also, remember to take calcium tablets if you don't get adequate
    amounts of calcium in your diet and most people don't. Trader Joe's
    sells a good Calcium/Magnesium/Zinc combination product for next to
    nothing.

    2. What blood test should I have?

    Answer:

    The only blood test that can determine vitamin D adequacy is a
    25-hydroxy-vitamin D. Whenever I say vitamin D level, I'm talking
    about a 25-hydroxy-vitamin D. Ask your doctor to order a
    25-hydroxy-vitamin D blood test.

    Unfortunately, many doctors order an activated vitamin D level,
    thinking it better to measure the most active form of vitamin D. It
    is not. Activated vitamin D, also known as 1, 25-di-hydroxy-vitamin
    D or calcitriol, should never be obtained to determine vitamin D
    sufficiency. Calcitriol is often elevated in vitamin D deficiency.
    You cannot tell anything about your vitamin D nutrition by measuring
    a calcitriol level. If your doctor insists on ordering a calcitriol
    level to determine your vitamin D nutrition, find another doctor.

    (However, serious problems exist with the technology used by some
    laboratories to measure vitamin D levels. Different labs will
    report different results when given the exact same specimen of
    blood. Furthermore, the same lab often reports significantly
    different numbers when sent the same specimen of blood at different
    times. In general, low numbers are more reliable than high numbers
    because interfering substances can easily give falsely elevated
    results. Prominent scientists have issued urgent calls for
    standardization. Dr. Graham Carter, one of my personal heroes, has
    dedicated his life to obtaining standardized, and accurate, vitamin
    D levels. His outfit in London is DEQAS or Vitamin D External
    Quality Assessment Scheme. Call your reference lab, such as Quest
    Diagnostics (800-222-0446), and insist they participate in DEQAS.
    DEQAS's phone in England is +44 (0)20 8383 3645.)

    J Clin Endocrinol Metab. 2004 Jul;89(7):3152-7.

    J Clin Endocrinol Metab. 2004 Jul;89(7):3149-51.

    If you take ergocalciferol, or vegetarian vitamin D, be warned.
    Ergocalciferol is not vitamin D, but a vitamin D-like patent drug
    whose patent has expired. It does not normally occur in the human
    body and is probably a weak agonist at the receptor site, meaning it
    may actually partially block vitamin D actions. Ergocalciferol is
    the villain in most of the reported cases of toxicity in the world's
    literature. All bets are off in terms of measuring blood levels if
    you take ergocalciferol. Some of the labs can pick it up and some
    can't. Don't take ergocalciferol; it is not vitamin D.

    If your doctor prescribes 50,000 units of ergocalciferol (Drisdol)
    once or twice a week, obtain a bottle of 50,000 unit capsules of
    cholecalciferol from Bio-Tech Pharmacal Inc. of Fayetteville,
    Arkansas, and take them instead. Take one or two per week until
    your level is around 50 ng/ml. Then stop taking them and begin
    maintenance therapy at a much lower dose. You could also take one
    5,000 unit capsule every day (also available from Bio-Tech
    Pharmacal) until your vitamin D level is around 50 ng/ml. Then take
    enough by mouth during the cold months (and go into the sun during
    the warm months) to keep your 25(OH)D level around 50 ng/ml. (Keep
    in mind that labs inside the USA report usually results in ngs/ml;
    labs outside the USA use nmols/L. One ng/ml is equal to 2.56
    nmol/L. So 50 ng/ml is about 125 nmol/L.)

    Take enough real vitamin D (cholecalciferol) to maintain your level
    around 50 ng/ml, year around. A 25(OH)D level is the best, and
    only, way you have of knowing if you are taking enough. However, do
    not be satisfied with a 50 ng/ml level unless you know how you are
    getting enough vitamin D to explain the level (i.e., you go into the
    sun or take supplements). If your level is 50 ng/ml and you don't
    take supplements, don't go into the sun, don't use a sun booth, or a
    UVB lamp, then the level is probably bogus. Repeat the level.

    In general, keep your vitamin D level in the upper one third of the
    lab's reference range, about 50 ng/ml with the most commonly used
    test. If you take higher doses, get your calcium checked when you
    get your 25(OH)D level, just to be safe. If you want to be sure
    that your hospital is sending their samples to an accurate reference
    lab, ask the director of the hospital's lab to contact Professor
    Bruce Hollis (843) 792-6854 or Professor Reinhold Vieth (416)
    586-5920. Both are the world-class authorities in vitamin D
    measurement technology.

    (Although 1, 25-dihydroxy-vitamin D (calcitriol) should never be
    used to diagnose vitamin D deficiency, calcitriol is important in
    evaluating one cause of high blood calcium, called vitamin D
    hypersensitivity. High blood calcium rarely occurs due to vitamin D
    toxicity, but calcium is elevated in people who have vitamin D
    hypersensitivity, although their vitamin D level will be normal or
    even low. Primary hyperparathyroidism is a common cause of vitamin
    D hypersensitivity, as is sarcoidosis and other granulomatous
    diseases. It can occasional occur in cancer; about 20% of patients
    with non-Hodgkin's lymphoma have vitamin D hypersensitivity. Any
    competent endocrinologist can treat vitamin D hypersensitivity.)

    3. Why don't you answer all your emails promptly?

    Answer:

    I do my best. As the circulation of the newsletter grows and the
    popularity of the website increases, I am inundated with questions
    like, I have prostate cancer, how much vitamin D should I take? My
    husband just learned he has lung cancer; I heard some researchers at
    Harvard said he should take vitamin D? My doctor just diagnosed me
    with multiple sclerosis, what should I do? Would you please email
    me a PDF of Professor Heaney's most recent paper? Would you explain
    to me the difference between calcidiol and calcitriol? How much
    vitamin D do I need to take if I have the flu? I use full-spectrum
    light bulbs so I'm getting plenty of vitamin D, aren't I? Is it
    true that children with low vitamin D levels are more likely to get
    lung infections? Are vitamin D levels associated with stroke? What
    is the Vitamin D Council? Why don't I get the newsletter; I
    subscribed? How can I be sure you know what you're talking about?
    What is your background? Is it true you are a conservative who used
    to be a communist? The list goes on.

    My answer is that I do my best. During the day I work full-time to
    support my family. I write, and attempt to distribute the
    newsletter, on the weekends and evenings. If you dont get the
    newsletter, your server is either blocking the mailing or stripping
    it of its content so you get a blank email. Be sure
    [email hidden] is on your allowed list. If you
    don't get the newsletters, you can always read them on the website.

    I can't provide personal medical advice. I can't email you
    copyrighted material. If you have prostate cancer, or lung cancer,
    or any cancer, you should take enough vitamin D so you are no longer
    vitamin D deficient (2,000 to 5,000 units a day, enough to get your
    vitamin D level around 50 ng/ml and keep it there). If you have MS,
    the same is true. If I ever got the flu, I'd take one 50,000
    capsule of vitamin D as a single dose although you should know that
    not one scientific study exists to support such a decision.
    Full-spectrum lighting has virtually no UVB so it will not generate
    any vitamin D in your skin.

    I try to alert you to all the important studies but I miss a few.
    For example, a recent study showed children with low vitamin D
    levels are eleven times more likely to get lung infections! Another
    recent study showed vitamin D deficiency is a major risk factor for
    stroke. I spend lots of time learning about vitamin D and I hope I
    know what I'm talking about. Readers can answer most of their own
    questions by spending time on the Vitamin D Councils website and
    reading old copies of the newsletters . You can read about the
    Vitamin D Council's organization on the website underabout us. If
    you have to, you can learn about my past lives by reading the
    eight-page PDF at: Brief Biography.

    4. Where does the Vitamin D Council get its funding and what do you
    do with all the money?

    Answer:

    We don't have any funding. We try to save the little money we have.
    Unfortunately, the Kettering Family Foundation just turned down our
    $100,000 grant request. I hoped they would fund us as they
    generously funded me in the late 1980's when I attempted
    (unsuccessfully) to reform testing in America's public schools.
    Currently we operate on private donations from readers ($563.00 so
    far) and a $5,000.00 donation that my wife and I made to the Vitamin
    D Council last year. The first thing we will do when we get funding
    is to sponsor a yearly seminar on vitamin D geared towards both
    health-care-practitioners and interested lay people. We will ask
    vitamin D experts from around the country to speak in plain language
    about practical aspects of vitamin D nutrition. If you know anyone
    who knows anyone with grant money, send him or her along, our
    address is at the end of this newsletter. I have no doubt that God
    will provide, should we be doing something worthwhile.

    5. If humans make 20,000 units of vitamin D after sunbathing for 20
    minutes in the summer, why shouldn't I take 20,000 units every day?

    Answer:

    Because of what we don't know that we don't know. Someone once said
    all knowledge comes in three categories: (1) what you know that you
    know; (2) what you know that you don't know; and (3), the largest
    category, what you don't know that you don't know. I know that I
    know how to speak English; I know that I don't know how to speak
    French; I don't know that I don't know how to speak a language that
    I don't know exists.

    We simply don't know the effects of taking 10,000 or 20,000 units a
    day for year after year. Although light-skinned humans make about
    50,000 of units of vitamin D after getting a sunburn (3 times the
    minimal erythemal dose), we also know they make progressively less
    and less vitamin D as their skin produces more and more melanin,
    thereby tanning. My 16-year-old daughter has noticed that she tans
    much faster when she has been taking oral vitamin D. That is, high
    blood levels may tell the skin to make more sunblock (melanin).
    Undoubtedly, other natural mechanisms exist to prevent toxicity, we
    just don't know. We do know that when healthy young men took 50,000
    units of vitamin D every day for six weeks, average serum blood
    levels increased by 257 ngs/ml. One young man achieved an increase
    of 400 ngs/ml after only six weeks. Although the authors found no
    evidence of toxicity after this six-week experiment (serum calcium
    remained normal), 50,000 units a day will eventually turn your
    internal organs into limestone.

    N Engl J Med. 1982 Mar 25;306(12):722-5.

    Osteoporos Int. 1998;8(3):222-30.

    6. Where do you predict all this vitamin D research is heading?

    I predict the final Food and Nutrition Board's recommendation (in
    about two decades) will be about 3,000 units a day. I predict that
    science will eventually show vitamin D deficiency is a major cause
    of many of the diseases of civilization. I predict that science
    will eventually show that many of these same diseases of
    civilization respond favorably to vitamin D treatment. I predict
    science will eventually prove vitamin D helps prevent and treat some
    infectious diseases, especially viral respiratory infections like
    influenza, croup, and the common cold. These are only my attempts
    to prophesize the future. Remember, only time can tell the
    difference between and prophet and a madman.

    7. What can I do to help?

    Answer:

    We need funding of course, so any donations are appreciated. We
    also need someone who is fluent in German and can translate German
    medical papers into English. Email me back if you are fluent in
    medical German and are willing to help translating papers.

    8. Is it true that vitamin D improves sexual performance, hair
    growth, and athletic performance?

    Answer:

    Are you asking if one of the most potent steroid hormones in the
    human body could affect sex, hair growth, or athletic performance?
    I'll give you a clue. The literature indicates you are right about
    one of the three. However, youll have to wait for a future
    newsletter to find out which one.

    I hope you have a happy and prosperous new year.

    John Cannell, MD

    The Vitamin D Council

    9100 San Gregorio Road

    Atascadero, CA 93422

    This is a periodic newsletter from the Vitamin D Council, a
    non-profit trying to end the epidemic of vitamin D deficiency. If
    you don't want to get the newsletter, please hit reply and let us
    know.

    This newsletter is not copyrighted. Please reproduce it and post it
    on Internet sites.

    Not signed up for the newsletter yet: Vitamin D Newsletter sign-up
    page

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

    Quoted message said:

    I know the best way to get vitamin D is from the sun. But the fact
    is
    I am a habitual night owl and frequently miss the sunlight/days.

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