Vitamin deficiency and vitamin K deficiency. In the medical literature, any of these may also be called by names on the pattern of "hypovitaminosis" or "avitaminosis" + "[letter of vitamin]", for example, hypovitaminosis A, hypovitaminosis C, hypovitaminosis D. Conversely hypervitaminosis is the syndrome of symptoms caused by over-retention of fat-soluble vitamins in the body. Vitamin deficiency A vitamin deficiency can cause a disease or syndrome known as an avitaminosis or hypovitaminosis. This usually refers to a long-term deficiency of a vitamin. When caused by inadequate nutrition it can be classed as a "primary deficiency", and when due to an underlying disorder such
Vitamin D deficiency in Australia in comparison to the 25% to the controlled. In Australia, vitamin D deficiency has been recognised within particular subgroups such as age, dark skinned and veiled women. There is deficiencies in around 80%, particularly in dark skinned and or veiled populations. The prevalence of vitamin D deficiency amongst dark skinner or who cover their skin for religious reasons can be directly attributed to the extremely low of sun exposure to which is the main source of vitamin D in Australia. Veiled women or individuals with dark skin pigmentation are easily vulnerable to fall into levels considered deficient in Australia. This