Vitamin D deficiency: a worldwide problem with health consequences.

@article{Holick2008VitaminDD,
  title={Vitamin D deficiency: a worldwide problem with health consequences.},
  author={Michael F Holick and Tai C. Chen},
  journal={The American journal of clinical nutrition},
  year={2008},
  volume={87 4},
  pages={
          1080S-6S
        }
}
Vitamin D deficiency is now recognized as a pandemic. The major cause of vitamin D deficiency is the lack of appreciation that sun exposure in moderation is the major source of vitamin D for most humans. Very few foods naturally contain vitamin D, and foods that are fortified with vitamin D are often inadequate to satisfy either a child's or an adult's vitamin D requirement. Vitamin D deficiency causes rickets in children and will precipitate and exacerbate osteopenia, osteoporosis, and… 
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TLDR
The existing literature on Vitamin D status in India was summarized, with most of the studies reporting a prevalence of 80%–90%, and it was prevalent in all the age groups and high-risk groups alike.
Vitamin D and asthma in children.
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More research is required to fully understand the role of vitamin D in the maintenance of airway homeostasis and address the diagnostic and therapeutic implications vitamin D may have in the future of asthma management.
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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