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Every week brings more bad news for Vitamin D
 Moderated by: Prof Trevor Marshall Page:  First Page Previous Page  1  2  3  4  5  6  7  8  ...  Next Page Last Page  
 

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Prof Trevor Marshall
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 Posted: Fri May 4th, 2012 11:36

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I goo.gl 'ed one of NickBowler's long URLs.. DId that fix it? It is OK in FireFox.

pgeek
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 Posted: Fri May 4th, 2012 11:37

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Yep - that did the the trick! Thanks!



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 Posted: Fri May 18th, 2012 19:37

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Vitamin D non-skeletal health benefits unclear

http://www.cbc.ca/news/health/story/2012/05/18/vitamin-d-supplements-clinical-trials.html



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Bane
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 Posted: Wed May 30th, 2012 00:18

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Too Much Vitamin D Can Be as Unhealthy as Too Little, Study Suggests

http://www.sciencedaily.com/releases/2012/05/120529102346.htm

http://jcem.endojournals.org/content/early/2012/05/09/jc.2012-1176

"We have had access to blood tests from a quarter of a million Copenhageners. We found higher mortality in people with a low level of vitamin D in their blood, but to our surprise, we also found it in people with a high level of vitamin D. We can draw a graph showing that perhaps it is harmful with too little and too much vitamin D,"

"The study is the largest of its kind -- and it was only possible to conduct it because of Denmark's civil registration system, which is unique in the Nordic countries. The 247,574 blood samples come from the Copenhagen General Practitioners Laboratory:"

jasmine
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 Posted: Wed May 30th, 2012 12:53

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This report on ABC News last week warns about calcium supplementation causing increased heart attack risk, but I wonder if they've factored in the reality that most calcium is sold with considerable levels of Vitamin D:

http://abcnews.go.com/Health/HeartHealth/calcium-supplements-linked-heart-attack-risk/story?id=16413252#.T8aFZFLB-So

Jasmine



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Prof Trevor Marshall
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 Posted: Tue Jun 12th, 2012 10:08

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It looks like a key Government agency is at last warning against D and Calcium supplementation for post-menopausal women. The evidence-base is slowly sinking-in:

http://www.usatoday.com/news/health/story/2012-06-07/panel-vitamin-d-recommendations/55549414/1

NickBowler
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 Posted: Tue Jun 19th, 2012 09:35

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http://www.sciencedaily.com/releases/2012/06/120615103525.htm



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Frenchie
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 Posted: Tue Jun 19th, 2012 23:45

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NickBowler wrote: http://www.sciencedaily.com/releases/2012/06/120615103525.htm
In this study, researchers used pooled data from eight randomized controlled trials with more than 1,000 participants each. The patient data set was composed of nearly 90 percent women, with a median age of 70 years. During the three-year study, death was reduced by 9 percent in those treated with vitamin D with calcium.


Suppressing the immune system may be the best option in some cases of end of life care.



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Cynthia S
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 Posted: Wed Jun 20th, 2012 11:51

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This was really a comparison of calcium and no calcium.  Where is the control group with no vitamin D?  Don't think they even thought of that.  It just goes to show you how completely they believe in vitamin D that they never even considered there was a flaw in their studies.  Cynthia



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Bane
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 Posted: Thu Jun 21st, 2012 00:42

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NickBowler wrote: http://www.sciencedaily.com/releases/2012/06/120615103525.htm
"The findings from the study found that the reduced mortality was not due to a lower number of fractures, but represents a beneficial effect beyond the reduced fracture risk"

"Our results showed reduced mortality in elderly patients using vitamin D supplements in combination with calcium, but these results were not found in patients on vitamin D alone."

NickBowler
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 Posted: Thu Jun 21st, 2012 01:44

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Exactly Bane! also see this quote in the recent study below: 'Vitamin D theories and findings are confounded by evidence that people with higher serum 25-hydroxy vitamin D levels have an increased risk of pancreatic cancer.'

http://www.medpagetoday.com/HematologyOncology/OtherCancers/33345



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 Posted: Tue Jun 26th, 2012 09:31

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Hi, I just stumbled across this link and found it interesting, because it states that some D tests are inaccurate and that people could be over-treated for a perceived deficiency when there isn't one.

http://www.everydayhealth.com/healthy-living/0625/vitamin-d-tests-are-inaccurate-study-says.aspx



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NickBowler
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 Posted: Wed Aug 1st, 2012 05:19

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oh dear!

http://www.efsa.europa.eu/en/efsajournal/pub/2813.htm



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Prof Trevor Marshall
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 Posted: Wed Aug 1st, 2012 05:39

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NickBowler wrote: oh dear
Well, at least this level of monumental stupidity will eventually cause some serious questions to be asked about how such a report could ever be issued, especially in the light of the U-shaped curve adverse data, which has been coming out for some time now...

We need to understand - only a tiny fraction of scientists and expert-physicians know how to use Google to search for available studies on a topic. Let alone PubMed, and its more cryptic command concepts...
 

NickBowler
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 Posted: Fri Aug 3rd, 2012 07:25

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Hormesis and vitamin D:

http://www.ajcn.org/content/88/2/578S.full.pdf



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Prof Trevor Marshall
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 Posted: Fri Aug 3rd, 2012 07:59

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You don't need concepts like "hormesis" to explain dose response - real science is perfectly capable of doing so. But it requires a lot more basic knowledge than most seem to have these days...
 

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 Posted: Wed Aug 8th, 2012 13:19

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Effect of Vitamin D Supplementation on Mycobacterium tuberculosis-Induced Innate Immune Responses in a Canadian Dené First Nations Cohort.

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0040692

"In this study we showed that serum levels of LL-37 decreased after vitamin D supplementation in both Dené and Caucasian participants"

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 Posted: Wed Aug 8th, 2012 16:29

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Dear CANADA,

Please stop the mandatory supplementation now.

markt9452



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 Posted: Wed Aug 8th, 2012 19:43

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Bane wrote:
Effect of Vitamin D Supplementation on Mycobacterium tuberculosis-Induced Innate Immune Responses in a Canadian Dené First Nations Cohort.

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0040692


Unbelievable. They tested a multitude of secondary markers BUT did not measure 1,25D directly???



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fibro
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 Posted: Fri Aug 10th, 2012 04:27

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Vitamin D and calcium supplementation - effect in prostate cancer:

link

Gus.

Last edited on Fri Aug 10th, 2012 07:45 by



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