Type of Dietary Supplement | N | % users all ages 11 to 19 years | % users age11–15 | % users age16–19 | P value between ages difference |
---|---|---|---|---|---|
Any dietary supplements | 1128 | 27 | 26 | 28 | 0.27 |
Any vitamin/mineral | 961 | 23 | 23 | 23 | 0.85 |
Any Multivitamin | 717 | 16 | 17 | 15 | 0.12 |
Non-prenatal | 642 | 15 | 17 | 13 | 0.003 |
Prenatal | 76 | 0.9 | 0.2 | 2 | 0.003 |
Single Vitamins/Minerals | |||||
Vitamin C | 222 | 6 | 6 | 7 | 0.43 |
Vitamin E | 38 | 1 | 0.9 | 1 | 0.65 |
Vitamin B | 35 | 1 | 0.8 | 1 | 0.50 |
Iron | 28 | 0.5 | 0.1 | 0.9 | 0.004 |
Calcium | 79 | 2 | 2 | 3 | 0.08 |
Any non-vitamin/mineral supplements* | 185 | 4 | 4 | 5 | 0.06 |
Weight, sport, and enhancement supplements** | 85 | 2 | 1 | 3 | 0.005 |
Herbal supplements*** | 80 | 2 | 2 | 3 | 0.39 |
Other non-herbal supplements**** | 36 | 1 | 1 | 1 | 0.25 |