Why is it so hard to gain enough Vitamin D by solar exposure in the European winter?

Why is it so hard to gain enough Vitamin D by solar exposure in the European winter?

UV exposure, which is the main source for a sufficient level of vitamin D in the human body, is found to be up to a factor of 7 lower in Northern Germany (52° N) in the winter months compared to UV levels in the central region of New Zealand's South Island (45° S). When corrected for the influe...

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Bibliographic Details
Main Authors: Gunther Seckmeyer, Christopher Mustert, Michael Schrempf, Richard McKenzie, Ben Liley, Michael Kotkamp, Alkiviadis Bais, Didier Gillotay, Harry Slaper, Anna-Maria Siani, Andrew Smedley, Ann Webb
Format: Article
Language:English
Published: Borntraeger 2018-09-01
Series:Meteorologische Zeitschrift
Subjects:
Vitamin D
Erythema
Hemispherical UV Differences
Exposure model
Online Access:http://dx.doi.org/10.1127/metz/2018/0855

Internet

http://dx.doi.org/10.1127/metz/2018/0855

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