Investigations found Roo had been accidentally poisoned with a dose of vitamin D prescribed for growing pains.
NHS data from 36,258 people is evaluated as part of the study led by the University of Surrey.
A university study finds regular exercise during the winter can keep Vitamin D levels up.
A rare hair specimen from a 400-year-old skeleton has revealed that present-day Scots could be just as deficient in vitamin D as their ancestors.
Following the man's death at East Surrey Hospital an inquest was carried out by the Surrey coroner.
Scientists find vitamin D deficiency in teeth from a North Shields burial ground.
With one in 10 deficient in vitamin D, the government is exploring new ways to boost the UK’s intake.
The vitamin is being studied - but why do some claim evidence is being ignored?
People are still advised to take a daily supplement this winter to keep bones and muscles healthy.