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Table 2

Number of survey respondents (n=81) who recommend (almost always or all of the time, often, sometimes, rarely, never) and sell the following dietary supplements

Dietary supplement
Number of respondents who provided a response
Number of respondents who recommended the supplement
Sold in the respondents’ clinic
  “Almost always or all the time” or “Often”“Sometimes”“Rarely” or “Never” 
Glucosamine sulfate/ other forms of glucosamine
81
30*
35
16
23
Chondroitin sulfate
64
7
16
41
6
Methylsulfonylmethane (MSM)
67
15
18
34
13
White willow bark
61
3
13
45
6
Boswellia
61
6
10
45
6
Bromelain
65
6
21
38
9
Quercetin
61
3
14
44
8
Multi-vitamins
72
27*
28
17
21
Any B vitamins
66
13
29
24
10
Niacin specifically
55
3
11
41
6
Folic acid specifically
57
5
13
39
6
Vitamin B12 specifically
57
7
12
38
6
Vitamin C
61
26*
16
19
15
Vitamin D
73
40*
17
16
18
Vitamin E
62
7
19
36
7
Calcium
71
32*
19
20
18
Chromium
59
5
13
41
7
Iron
61
6
17
38
5
Magnesium
63
18
21
24
7
Potassium
59
3
14
42
5
Selenium
58
3
9
46
4
Zinc
59
5
12
42
5
Co-enzyme Q10
64
8
13
43
11
Omega-3 fatty acids
75
41*
15
19
20
Omega-6 fatty acids
65
13
11
41
13
Garlic pills
57
3
8
46
3
Saw palmetto
62
5
13
44
11
Black cohosh
56
2
6
48
6
St. John’s Wort
53
0
5
48
1
Ginkgo biloba
54
0
7
47
3
Echinacea
53
3
11
39
4
Ginseng
53
2
3
48
2
Creatine
52
0
4
48
4
Protein powders
56
6
8
42
6
Homeopathic formulations
56
5
5
46
5
Probiotics6720*182914

* indicates the supplements that were recommended “almost always or all the time” or “often” by ≥25% of respondents.

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