What is the effect of nicotinic acid on human organism?

it is neutral
It is harmful, causes cancer
It is highly toxic, kills in 10 seconds
It is essential for functioning
Nicotinic acid, better known as niacin or vitamin B3, has nothing in common with tobacco. Chronic lack of niacin leads to pellagra, a vitamin deficiency disease.
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Answers by country

it is neutral
It is harmful, causes cancer
It is highly toxic, kills in 10 seconds
It is essential for functioning
answers
flagRussia
5%
25%
7%
61%
154
flagGreece
16%
16%
8%
60%
25
flagKazakhstan
4%
28%
12%
56%
25
flagUkraine
3%
38%
3%
52%
213
flagGermany
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35%
6%
52%
48
flagBelarus
9%
31%
9%
50%
32
flagPakistan
5%
32%
12%
47%
74
flagAustria
13%
20%
20%
46%
15
flagAustralia
3%
33%
17%
42%
57
flagCanada
9%
39%
9%
42%
33
flagthe United Kingdom
5%
48%
10%
35%
179
flagNigeria
2%
45%
8%
31%
35
flagRepublic of Ireland
0%
50%
18%
31%
22
flagPoland
4%
51%
12%
30%
11213
flagMalaysia
7%
37%
25%
29%
27
flagthe United States
6%
50%
14%
27%
457
flagIndia
4%
49%
20%
24%
479
flagthe Netherlands
21%
35%
21%
21%
14
flagSingapore
6%
68%
12%
12%
16
flagthe Philippines
13%
66%
11%
5%
36