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| Avitaminosis Classification and external resources |
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| ICD-10 | E50-E56 |
|---|---|
| ICD-9 | 264-269 |
| MeSH | D001361 |
Avitaminosis is any disease caused by chronic or long-term vitamin deficiency or caused by a defect in metabolic conversion, such as tryptophan to niacin. They are designated by the same letter as the vitamin.
Conversely hypervitaminosis is the syndrome of symptoms caused by over-retention of fat-soluble vitamins in the body.
Types
Avitaminoses include
- vitamin A deficiency causes xerophthalmia or night blindness
- thiamine deficiency causes beriberi
- niacin deficiency causes pellagra
- vitamin B12 deficiency leads to megaloblastic anemia
- vitamin C deficiency leads to scurvy
- vitamin D deficiency causes rickets
- vitamin K deficiency causes impaired coagulation
See also
- Essential nutrient
- Illnesses related to poor nutrition
- Vitamin#Human vitamins for more details.
- Orthomolecular medicine
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Wikipedia content modification information:
- This page was last modified on 17 July 2008, at 10:10.
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