Vitamin D Status Clinical Trial
Official title:
How Much UVB Radiation is Necessary to Maintain Summer Vitamin D Level During Winter?
The purpose of the study is to determine the frequency of UVB radiations necessary to maintain the Vitamin D level during winter time.
The work is addressing vitamin D production after UVB exposure and explore how much UVB radiation which is necessary to maintain a sufficient vitamin D level during the winter period in Denmark. 4 different UVB exposure times and 2 different UVB doses to 2 different body surface areas. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Basic Science
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