London Nov 19: Vitamin D deficiency has long been linked to poor bone health. But did you know it could casually kill you? According to a study based in gene analysis vitamin D deficiency can cause early death. The study involving 96000 participants from large-scale population studies in Denmark found a causal relationship between increased mortality and low vitamin D levels. To determine the relationship researchers analysed vitamin D levels measured using blood samples from the studies and examined specific genetic defects. All participants were followed for mortality from 1976 until 2014. 'We can see that genes associated with low