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Vitamin deficiency is the condition of a long-term lack of a vitamin. When caused by not enough vitamin intake it is classified as a primary deficiency, whereas when due to an underlying disorder such as malabsorption it is called a secondary deficiency. An underlying disorder can have 2 main causes:
Men in both studies, on a diet devoid or nearly devoid of vitamin C, had blood levels of vitamin C too low to be accurately measured when they developed signs of scurvy, and in the Iowa study, at this time were estimated (by labeled vitamin C dilution) to have a body pool of less than 300 mg, with daily turnover of only 2.5 mg/day.
Mapping of several bone diseases onto levels of vitamin D (calcidiol) in the blood [6] Normal bone vs. osteoporosis. Vitamin D deficiency is typically diagnosed by measuring the concentration of the 25-hydroxyvitamin D in the blood, which is the most accurate measure of stores of vitamin D in the body.
Vitamin D deficiency, especially in early life, is linked to an increased risk of autoimmune conditions, such as type 1 diabetes. Autoimmune diseases can be caused by a failure of T cells, a type ...
Worldwide, deficiencies in iodine, Vitamin A, and iron are the most common. Children and pregnant women in low-income countries are at especially high risk for micronutrient deficiencies. [27] [51] Anemia is most commonly caused by iron deficiency, but can also result from other micronutrient deficiencies and diseases. This condition can have ...
“The combination of body and cognitive changes is a major clue that a treatable cause such as B12 deficiency could be the issue,” he says. How vitamin B12 deficiency is detected
This condition can be caused by vitamin D, calcium or phosphorus deficiency. [86] Vitamin D deficiency remains the main cause of rickets among young infants in most countries because breast milk is low in vitamin D, and darker skin, social customs, and climatic conditions can contribute to inadequate sun exposure.
Measles can cause vitamin A deficiency in some people, but experts say supplementation only eases that condition and doesn’t treat other symptoms. ... Measles can deplete the body’s stores of ...