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Well-being Health

Vitamin D

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Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation. The first occurs in the liver and converts vitamin D to 25-hydroxyvitamin D [25(OH)D], also known as calcidiol. The second occurs primarily in the kidney and forms the physiologically active 1,25-dihydroxyvitamin D [1,25(OH)2D], also known as calcitriol


Clinical meaning

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Application range

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Global Vit-D Market

Global VitD market is rapidly growing and organized : the US (8,000% increase in a decade in US with 32.97% CAGR) and Canada occupy the largest share, followed by the UK, Sweden, Finland and Russia. The Global VitD testing market is expected to reach $2,187mil(225mil tests) by 2018 growing at a CAGR 32.36%. US: 82mil tests by 2018 growing at a CAGR 7.32% / EU: 72mil tests by 2018 growing at a CAGR 21.67%

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