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| '''Avitaminosis''' is any ] caused by chronic or long-term ] deficiency or caused by a defect in metabolic conversion, such as ] to ]. They are designated by the same letter as the vitamin.<ref>{{cite book |title=Vitamins in Animal and Human Nutrition |author=Lee Russell McDowell |publisher=Wiley-Blackwell |edition=2 ed. |year=2000 |isbn=0-8138-2630-6}}</ref><ref>{{cite journal |title=Human-milk intoxication due to B1 avitaminosis |author=Lydia Fehily |journal=British Medical Journal |pages=509- |year=1944 |url=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2286425/pdf/brmedj03910-0006.pdf |pmc=2286425 |pmid=20785731 |volume=2 |issue=4374}}</ref> | '''Avitaminosis''' is any ] caused by chronic or long-term ] deficiency or caused by a defect in metabolic conversion, such as ] to ]. They are designated by the same letter as the vitamin.<ref>{{cite book |title=Vitamins in Animal and Human Nutrition |author=Lee Russell McDowell |publisher=Wiley-Blackwell |edition=2 ed. |year=2000 |isbn=0-8138-2630-6}}</ref><ref>{{cite journal |title=Human-milk intoxication due to B1 avitaminosis |author=Lydia Fehily |journal=British Medical Journal |pages=509- |year=1944 |url=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2286425/pdf/brmedj03910-0006.pdf |pmc=2286425 |pmid=20785731 |volume=2 |issue=4374}}</ref> | ||
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| Conversely ] is the syndrome of symptoms caused by over-retention of fat-soluble vitamins in the body. | Conversely ] is the syndrome of symptoms caused by over-retention of fat-soluble vitamins in the body. | ||
| ==Types== | ==Types== | ||
| Avitaminoses include |
Avitaminoses include | ||
| *] deficiency causes ] or ] | *] deficiency causes ] or ] | ||
| *] deficiency causes ] | *] deficiency causes ] | ||
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| Vitamin deficiency | |
|---|---|
| Specialty | Endocrinology  |
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 and subacute combined degeneration of spinal cord
- vitamin C deficiency leads to scurvy
- vitamin D deficiency causes rickets
- vitamin K deficiency causes impaired coagulation
References
- Lee Russell McDowell (2000). Vitamins in Animal and Human Nutrition (2 ed. ed.). Wiley-Blackwell. ISBN 0-8138-2630-6.
{{cite book}}:|edition=has extra text (help) - Lydia Fehily (1944). "Human-milk intoxication due to B1 avitaminosis" (PDF). British Medical Journal. 2 (4374): 509-. PMC 2286425. PMID 20785731.
See also
- Essential nutrient
- Illnesses related to poor nutrition
- Vitamin#Human vitamins for more details.
- Orthomolecular medicine
| Malnutrition | |||||
|---|---|---|---|---|---|
| Protein-energy malnutrition | |||||
| Vitamin deficiency |
| ||||
| Mineral deficiency | |||||
| Growth | |||||
| General | |||||