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Vitamin D is a group of structurally related, fat-soluble compounds responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, along with numerous other biological functions. [1] [2] In humans, the most important compounds within this group are vitamin D 3 (cholecalciferol) and vitamin D 2 (ergocalciferol). [2] [3]
Vitamin D (the inactive version) is mainly from two forms: vitamin D 3 and vitamin D 2. Vitamin D 3, or cholecalciferol, is formed in the skin after exposure to sunlight or ultra violet radiation or from D 3 supplements or fortified food sources. Vitamin D 2, or ergocalciferol, is obtained from D 2 supplements or fortified food sources. [3]
The columns-start template and its child templates column and columns-end can be used to make a fixed number of columns (up to 5) that will span the entire page above a certain minimum width (100 ems for 5 columns, 80 for 4, 60 for 3 and 2). Below the minimum width, each column starting from the right will gracefully display below another one ...
Ergocalciferol may be used as a vitamin D supplement, whereas cholecalciferol (vitamin D 3) is produced naturally by the skin when exposed to ultraviolet light. [15] Ergocalciferol (D 2 ) and cholecalciferol (D 3 ) are considered to be equivalent for vitamin D production, as both forms appear to have similar efficacy in ameliorating rickets ...
The Recommended Dietary Allowance (RDA) for vitamin B12 is 0.9-2.4 μg/day, while the estimated average requirement in the U.S. and Canada is 0.7-2 μg/day. Elderly individuals with plasma vitamin B12 levels below 148 pmol/L are considered severely deficient, and those with levels between 148 and 221 pmol/L are marginally deficient.
Vitamin D deficiency: Usually asymptomatic, causes reduce bone density (osteomalacia), rickets, myopathy, and is associated with the development of schizophrenia. It is typically diagnosed by measuring the concentration of the 25-hydroxyvitamin D (25(OH)D) in plasma, which is the most accurate measure of stores of vitamin D in the body ...
Here, width specifies the width of the columns, and determines dynamically the number of columns based on screen width; more columns will be shown on wider displays. If |colwidth= is not specified, the default width of 30em will be used. This template uses CSS3 multiple-column layout, which is not supported by all web browsers.
To create columns in an article one may use {} and {}. Note that this is not supported by Internet Explorer version 9 and below or Opera version 11 and below — see {{ Div col }} for details. To illustrate the use of these templates, this example uses the {{ lorem }} template to generate Lorem ipsum placeholder text.