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Vitamin D deficiency

Hypovitaminosis D · Nedostatek vitaminu D

What it is

Too little sun or intake; bone softens and muscles ache.

Symptoms & signs

  • Bone pain
  • muscle weakness
  • fatigue
  • frequent infections
  • rickets in children
  • low mood

🚩 Get help if…

  • call 112 / 911 now Muscle spasms, tingling around the mouth, or fits
  • see a doctor soon Child with bowed legs, late walking or bone pain
  • see a doctor soon Bone pain, or a break from a minor knock
  • see a doctor soon Muscle weakness that makes stairs or standing up hard

Where it strikes

Medical treatment

  • Colecalciferol loading then maintenance 800–2000 IU
  • check calcium and PTH
  • treat malabsorption

Natural & lifestyle

  • 15–30 min midday sun on arms and legs
  • oily fish
  • fortified foods
  • supplement in winter

Emerging & experimental

  • Personalised dosing by genotype
  • vitamin D in immune modulation trials

Alternative, off-label & anecdotal

Approaches used outside the guidelines, with what their supporters report and what testing has found so far.

  • UV-exposed mushrooms — contain vitamin D2 and raise levels modestly early / small studies
  • UVB lamps and sunbeds in winter — raise vitamin D, with a skin-cancer risk early / small studies
  • The Coimbra protocol (very high doses for autoimmune disease) — anecdotal; risk of dangerous calcium levels anecdotal / traditional

ICD codes