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Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, along with numerous other biological functions. [ 1 ][ 2 ] In humans, the most significant compounds within this group are vitamin D 3 (cholecalciferol) and vitamin D 2 (ergocalciferol). [ 2 ][ 3 ]
Vitamin D and neurological disorders. Hypovitaminosis D is associated with several neuropsychiatric disorders including dementia, Parkinson's disease, multiple sclerosis, epilepsy, and schizophrenia. There are several proposed mechanisms by which hypovitaminosis D may impact these disorders. One of these mechanisms is through neuronal apoptosis ...
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. [1][7][2] One nanogram per millilitre (1 ng/mL) is equivalent to 2.5 nanomoles per litre (2.5 nmol/L). Severe deficiency: <12 ng/mL = <30 nmol/L[2] Deficiency ...
Both vitamin D2 and vitamin D3 will help to increase vitamin D levels in the blood, says Pelitera. However, some studies have shown that supplementing vitamin D3 does a little bit better of a job ...
Dr. Tolliver says it’s recommended that adults get 600 international units of vitamin D a day, and there are some foods that are an excellent source of it. “Fatty fish like salmon, sardines ...
Ergocalciferol, also known as vitamin D2 and nonspecifically calciferol, is a type of vitamin D found in food and used as a dietary supplement. [3] As a supplement it is used to prevent and treat vitamin D deficiency. [4] This includes vitamin D deficiency due to poor absorption by the intestines or liver disease. [5]
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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 ...