The effect of darkness on vitamin D in adults

Summary Circulating 25-hydroxy vitamin D measurements were made on Caucasians in the Antarctic. Following a period of 3 months' complete darkness there was a significant fall in 25-hydroxy vitamin D values. These results emphasize the importance of u.v. light on skin synthesis of cholecalcifero...

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Bibliographic Details
Published in:Postgraduate Medical Journal
Main Authors: Fairney, A, Fry, J, Lipscomb, A
Format: Article in Journal/Newspaper
Language:English
Published: Oxford University Press (OUP) 1979
Subjects:
General Medicine
Antarc*
Antarctic
Online Access:http://dx.doi.org/10.1136/pgmj.55.642.248
https://academic.oup.com/pmj/article-pdf/55/642/248/50159082/postgradmedj-55-248.pdf
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Summary:Summary Circulating 25-hydroxy vitamin D measurements were made on Caucasians in the Antarctic. Following a period of 3 months' complete darkness there was a significant fall in 25-hydroxy vitamin D values. These results emphasize the importance of u.v. light on skin synthesis of cholecalciferol and support the view that the geriatric and immigrant population should be adequately exposed to sunlight to prevent vitamin D deficiency.

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