Which hours of the day are the most productive regarding ultraviolet light exposure and vitamin D production?

0 votes
     3PM-8PM
      8AM-5PM
      9AM-3PM
      6AM-9AM
asked Jun 25, 2013 in Nutrition by anonymous
    

1 Answer

0 votes
9AM-3PM
answered Jun 26, 2013 by Ilovefood ~Expert~ (4,050 points)



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