Which vitamin is produced in the skin during sun bathing?

vitamin A
vitamin B
vitamin C
vitamin D
Vitamin D is syn­the­sized from choles­terol in the skin with the help of the natural ul­tra­vi­o­let wave­length of sun­light. Sup­ple­men­ta­tion of vitamin D is rec­om­mend­ed only for sun-de­prived people (eg. elderly or living in the Far North).

Answers distribution

vitamin A
vitamin B
vitamin C
vitamin D
answers
flagNorway
0%
0%
0%
100%
24
flagUkraine
0%
0%
0%
100%
18
flagBulgaria
0%
0%
0%
100%
12
flagFinland
0%
0%
0%
100%
11
flagItaly
6%
0%
0%
93%
29
flagRepublic of Ireland
5%
1%
0%
92%
52
flagSweden
0%
0%
3%
92%
27
flagCanada
0%
7%
0%
92%
26
flagthe United Arab Emirates
0%
0%
7%
92%
14
flagGreece
9%
0%
0%
90%
11
flagGermany
6%
5%
0%
86%
152
flagthe United States
3%
2%
5%
85%
260
flagthe Netherlands
14%
0%
0%
85%
28
flagthe United Kingdom
7%
3%
4%
84%
264
flagPoland
6%
5%
4%
83%
10852
flagAustralia
8%
8%
0%
83%
12
flagCzech Republic
0%
18%
0%
81%
16
flagIndia
3%
3%
6%
78%
78
flagUnknown
9%
6%
5%
77%
469
flagFrance
8%
8%
12%
72%
25

Gender

men77%
women86%
vitamin A
7%
6%
vitamin B
8%
3%
vitamin C
5%
3%
vitamin D
77%
86%

Language versions

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Which vitamin is produced in the skin during sun bathing?
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81%

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Illustration: Pedro Simões
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