Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Avitaminosis
Introduction
Overview
Overview
Template:DiseaseDisorder infobox
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. 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 bleeding
Conversely hypervitaminosis is the syndrome of symptoms caused by over-retention of fat-soluble vitamins in the body.
See also
See also
- Essential nutrient
- Illnesses related to poor nutrition
- Vitamin#Human vitamins for more details.
External links
External links
bg:Авитаминоза cs:Avitaminóza de:Avitaminose eo:Avitaminozo it:Avitaminosi lt:Avitaminozė nl:Deficiëntieziekte sl:Avitaminoza uk:Авітамінози