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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.
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.
Common, most foods do not contain vitamin D, indicating that a deficiency will occur unless people get sunlight exposure or eat manufactured foods purposely fortified with vitamin D. Vitamin D deficiency is a known cause of rickets, and has been linked to numerous other health problems. [46] [47] Vitamin E deficiency
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 ...
Healthcare professionals can diagnose vitamin D deficiency with a 25-hydroxy vitamin D blood test. This test checks for 25-hydroxyvitamin D, a common form of vitamin D that circulates in the blood.
Vitamin D deficiency, hypovitaminosis D, a condition with deficiency of vitamin D; Vitamin D-binding protein, encoded by the GC gene, binds vitamin D in blood; Vitamin D receptor (VDR), or calcitriol receptor, the intracellular receptor for vitamin D; Vitamin D response element (VDRE) is a DNA sequence found in the promoter region of vitamin D ...
Vitamin D supplement Vitamin D can play an important role in winter blues and seasonal affective disorder. As of 2018, 42% of adults in the U.S. are deficient in vitamin D.
Cholecalciferol is a form of vitamin D which is naturally synthesized in skin and functions as a pro-hormone, being converted to calcitriol. This is important for maintaining calcium levels and promoting bone health and development. [4] As a medication, cholecalciferol may be taken as a dietary supplement to prevent or to treat vitamin D ...