New research from the University of Copenhagen indicates
that too high a level of the essential vitamin is not good either.
The results from a study on 247,574 Copenhageners of a wide
age range support the benefits of vitamin D in terms of mortality risk.
However, the research results also show higher mortality in people with too
high levels of vitamin D in their bloodstream.
If the blood contains
less than 10 nanomol (nmol) of vitamin per liter of serum, mortality is 2.31
times higher.
However, if the blood
contains more than 140 nmol of vitamin per liter of serum, mortality is higher
by a factor of 1.42.
The lowest mortality
risk was at 50–60 nmol/liter.
Both values are compared to 50 nmol of vitamin per liter of
serum, where the scientists see the lowest mortality rate. More studies are
needed
Darshana Durup, a PhD student, emphasises that while
scientists do not know the cause of the higher mortality, she believes that the
new results can be used to question the wisdom of those people who claim that
you can never get too much vitamin D:
"It is important to conduct further studies in order to
understand the relationship. A lot of research has been conducted on the risk
of vitamin D deficiency. However, there is no scientific evidence for a ‘more
is better’ argument for vitamin D, and our study does not support the argument
either. We hope that our study will inspire others to study the cause of higher
mortality with a high level of vitamin D," says Darshana Durup.
###
The above story is based on the May
29, 2012 news release by University
of Copenhagen.
D.
Durup, H. L. Jorgensen, J. Christensen, P. Schwarz, A. M. Heegaard, B. Lind. A
Reverse J-Shaped Association of All-Cause Mortality with Serum
25-Hydroxyvitamin D in General Practice, the CopD Study. Journal
of Clinical Endocrinology & Metabolism, 2012; DOI: 10.1210/jc.2012-1176
###
Get your Vitamin D through sensible sun exposure, diet and,
if necessary sensible supplementation.
Visit this well researched site by Better Health Channel of
Victoria, Australia for more information.
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