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Vitamin D research

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  • Vitamin D research

    I ran across the attached article in the American Journal of Clinical Nutrition from the May 2010 issue.
    They showed that supplementation of Vitamin D in schoolchildren reduced incidence of Influenza A by 50%. as a side effect, they noticed that asthma attacks in children with asthma were dramatically reduced as well.

    It's always nice to run across research that support what we know to be true

  • #2
    Can't access the pdf, it says invalid attachment.

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    • #3
      Vitamin D rocks. I started supplementing (1000iu with breakfast) my kid when her whole class was getting sick and she breezed through. Heck, I gave her a couple sick days when she was healthy, just to be fair.

      We're in the desert and she is deeply tanned atm, so D supps stopped in May.

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      • #4
        Originally posted by maba View Post
        Can't access the pdf, it says invalid attachment.
        I think a forum mod has to approve it before ya'll can access it...

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        • #5
          You can also find the study at vitamindcouncil.org

          This was the first study to show that D likely prevents influenza.

          It has treated my asthma and my girls asthma by about 80% None of us are on maintenance meds any longer and I've only had pneumonia once in the last 3 years (two years ago) as compared to 8 times between 2001 and 2006 or 2007



          iherb referral code CIL457- $5 off first order

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          • #6
            ^ that is interesting. I've had asthma for about 17 years and lately I haven't had any symptoms. I've been taking way more D so that probably explains it. It's amazing how messed up things can get from lack of one thing.

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            • #7
              Public release date: 13-Jul-2010

              Contact: mcyperli@ucalgary.ca, 403-210-3835, University of Calgary

              New vitamin D guidelines

              Physicians say Canadians should be taking more supplements

              New and updated guidelines on recommended vitamin D intake have been published this week in the online issue of the Canadian Medical Association Journal (CMAJ).

              Dr. David Hanley, professor at the University of Calgary Faculty of Medicine, and member of Osteoporosis Canada's (OC) Scientific Advisory Council, is the lead author of the paper on behalf of Osteoporosis Canada.

              "OC's current recommendations on vitamin D intake for Canadians are more than 10 years old, and since then, there has been a lot of new and exciting research in this area," says Hanley, who is also a member of the McCaig Institute for Bone and Joint Health and the Calgary Institute for Population and Public Health (CIPPH) at the U of C. "Because of these research advances, we felt it was time to update OC's 2002 Clinical Practice Guidelines for the treatment and management of osteoporosis."

              Vitamin D, often called the sunshine vitamin, is mainly obtained from sun exposure of our skin. However, Canadians are not getting enough. Supplements are necessary to obtain adequate levels because a person's diet has minimal impact. "Canadians are at risk of vitamin D deficiency from October to April because winter sunlight in northern latitudes does not allow for adequate vitamin D production," says Julie Foley, president & CEO of Osteoporosis Canada. "Also, because vitamin D requirements for an individual may vary considerably depending on many factors, it's very important to check with your physician about how much vitamin D you should be taking."

              Vitamin D is essential to the treatment of osteoporosis because it promotes calcium absorption from the diet and is necessary for normal bone growth. Some research suggests it may also ward off immune diseases, infection and cancer.

              The new guidelines recommend daily supplements of 400 to 1000 IU for adults under age 50 without osteoporosis or conditions affecting vitamin D absorption. For adults over 50, supplements of between 800 and 2000 IU are recommended.

              "A daily supplement of 25 mcg (800 IU) should now be regarded as a minimum dose for adults with osteoporosis," writes Hanley with co-authors. "Canadians can safely take daily vitamin D supplements up to the current definition of tolerable upper intake level (50 mcg [2000 IU]), but doses above that require medical supervision."

              The authors conclude with a call for research into optimal doses and safe upper limits for vitamin D intake. Despite a great deal of new research in the past decade, these major clinical questions still have not been addressed.

              ###

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