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
- ICD-10 E55.9
- ICD-11 5B57.Z Vitamin D deficiency, unspecified