vitamin D2


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Related to vitamin D2: vitamin D3, ergocalciferol

vitamin D2

n
(Elements & Compounds) another name for calciferol
References in periodicals archive ?
Ergosterol is converted by ultraviolet irradiation into ergocalciferol, or synthetic vitamin D2.
Chi-square test was applied among individuals with different blood pressure and vitamin D2 levels.
The diagnosis of vitamin D-deficient rickets was established and the infant received an intramuscular dose 300 000 IU of vitamin D2.
Particularly photo-high-T could be also tested in other photochemical reactions; such as the synthesis of vitamin D2 or, by using other photocatalysts such as TiO2, in the N-ethylation of benzylamine.
It comes in many forms; the two major forms are vitamin D2 and vitamin D3.
However Daniel O'Shaughnessy, of the British Association for Applied Nutrition and Nutritional Therapy, says the quality of multi-vitamins varies: "If your multivitamin contains folic acid, cyancobalmin, magnesium oxide, calcium carbonate, and vitamin D2 - vitamin D3 is superior - chances are it is not good for you as it's made with cheap ingredients which are poorly absorbed.
Daniel O'Shaughnessy agrees quality of multi-vitamins varies: "If your multivitamin contains folic acid, cyancobalmin, magnesium oxide, calcium carbonate, and vitamin D2 - vitamin D3 is superior - chances are it is not good for you as it's made with cheap ingredients which are poorly absorbed.
25-OH Vitamin D is a challenging analyte to accurately measure in human blood due to the presence of 25-OH Vitamin D2, Vitamin D binding proteins, 25-OH Vitamin D metabolites such as 24, 25 (OH)2 Vitamin D, and C-3 epimers of 25-OH Vitamin D.
In their meta-analysis, they included studies that reported any baseline 25-hydroxyvitamin D blood levels, any blood pressure levels, studies that lasted as little as four weeks, and which involved supplementation with a variety of forms of vitamin D, including vitamin D2, vitamin D3, calcitriol (1,25-hydroxyvitamin D3), and 1-alpha-hydroxylated versions of vitamin D (paricalcitol and doxerocalciferol).
Vitamin D used in fortification and dietary supplements may be in the form of vitamin D2 (ergocalciferol) or vitamin D3 (cholecalciferol).

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