Women with low levels of vitamin D are
nearly 50 per cent more likely to develop multiple sclerosis than those
who get enough, according to a study.
The
findings could help to explain why there are higher rates of the
disease among those in the North who get less sunlight, which helps the
body make vitamin D.
It is believed the
'sunshine vitamin', also found in eggs, red meat and oily fish, may
help to suppress immune cells that attack the body to cause MS. The
disease can leave people wheelchair-bound by severely damaging their
muscles.
The researchers examined blood samples from more than 3,200
women, who are two to three times more likely to be diagnosed with MS
than men.
Those deficient in vitamin D
had a 43 per cent higher chance of getting MS than women with adequate
levels. The risk was 27 per cent higher for those deficient in vitamin D
as compared with those with just insufficient levels.
Lead
author said: 'We do know there is a higher
incidence of MS in more northern countries, the further you move away
from the equator.
'One hypothesis put forth for this is that these populations have a lack of vitamin D due to a lack of sun exposure.
'Our
study adds to the evidence that vitamin D deficiency is a risk factor
for MS and that correcting this in women of reproductive age may reduce
their risk of developing it. People should discuss with their doctor
whether they need a supplement.'
Office workers, pregnant women and the elderly are among those said to be at risk of falling dangerously low on vitamin D.
The sunshine vitamin is measured in
nanomoles, and people are deficient if they have less than 30 nanomoles
per litre of blood. This can be raised to adequate levels of 50
nanomoles with a daily tablet.
Dr
said: ' but striving to achieve vitamin D
sufficiency over the course of a person's life will likely have
multiple health benefits.'
Dr. said the study shows that vitamin D remains a crucial area of research.
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Labels: low Vitamin D, multiple sclerosis(MS), sunlight, women
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