Huge increase in UK vitamin D prescriptions by
http://sunlightscientific.tumblr.com/ Has the following
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Vitamin D prescriptions rare in July 2011

Vitamin D on average was about 600th in terms of frequency
Some PCTs wrote no prescriptions for vitamin D that month.
Huge increase by July 2012

Prescriptions for vitamin D ranked in the top 50 most common prescriptions in all 151 PCTs. (primary care trusts)
The monthly cost to the NHS? Over £5,000,000
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See also Vitamin D Life
UK doctors can now prescribe 800 IU of vitamin D – Dec 2011 This may have been the reason for the increase in 2012
Low vitamin D associated with poor regions in the UK, median was 10 ng – Nov 2012
Why are so many Victorian killer illnesses making a comeback - Nov 2012
4 out of 10 Irish have vitamin D levels inadequate even for bone health – Aug 2012
80 percent of South Asian Women in UK had less than 10 ng of vitamin D in winter – April 2012
European Osteo group recommends 20-50 ng of vitamin D – Jan 2013
Even taking as much as 4200 IU vitamin D 43 percent had less than 30 ng in blood – RCT Jan 2013
30 percent of vitamin D sold now has more than 2000 IU - Dec 2012
Death of Babies in UK due to vitamin D deficiency – Jan 2012
Scotts having extremely low vitamin D got no, or only minimal treatment – Feb 2012
Prescribing Sunshine - book Aug 2012 Vitamin D book for the UK
New Zealand doctors are starting to prescribe more sunshine – Aug 2012