Table 5.
The prevalence of total dietary intakes above the Tolerable Upper Intake Level (UL) among users of dietary supplements in the United States (aged ≥19 y), 2003–2006
| User group | Age (y) | Folic acid (n=3,031) | Vitamin A (n=2,930) | Vitamin B-6 (n=3,057) | Vitamin C (n=3,390) |
|---|---|---|---|---|---|
| ←---% ± standard error---→ | |||||
| All | ≥19 | 7.0 ± 0.5 | 3.0 ± 0.5 | 3.5 ± 0.4 | 1.6 ± 0.3 |
| 19–30 | 8.1 ± 1.4 | 1.2 ± 0.6 | 1.3 ± 0.6 | 0.9 ± 0.7 | |
| 31–50 | 5.7 ± 0.7 | 2.0 ± 0.7 | 3.3 ± 0.7 | 1.9 ± 0.6 | |
| 51–70 | 7.8 ± 0.9 | 3.9 ± 0.9 | 3.9 ± 0.9 | 1.8 ± 0.6 | |
| ≥71 | 6.6 ± 1.0 | 5.2 ± 1.1 | 5.5 ± 1.1 | 1.3 ± 0.4 | |
| Men | ≥19 | 6.3 ± 0.6 | 2.8 ± 0.5 | 3.0 ± 0.6 | 1.6 ± 0.5 |
| 19–30 | 5.1 ± 1.9 | 1.5 ± 0.8 | 1.1 ± 0.8 | 1.6 ± 1.4 | |
| 31–50 | 5.4 ± 1.0 | 1.3 ± 0.5 | 2.7 ± 0.8 | 1.8 ± 0.8 | |
| 51–70 | 7.2 ± 1.0 | 4.3 ± 1.3 | 3.8 ± 1.6 | 1.5 ± 0.6 | |
| ≥71 | 8.4 ± 1.4 | 4.9 ± 1.2 | 4.6 ± 1.3 | 1.6 ± 0.6 | |
| Women | ≥19 | 7.5 ± 0.9 | 3.2 ± 0.7 | 3.9 ± 0.6 | 1.6 ± 0.4 |
| 19–30 | 10.7 ± 2.4 | 0.8 ± 0.8 | 1.5 ± 0.8 | 0.3 ± 0.3 | |
| 31–50 | 6.2 ± 1.2 | 2.7 ± 1.2 | 3.9 ± 1.2 | 2.0 ± 0.9 | |
| 51–70 | 8.2 ± 1.3 | 3.7 ± 1.1 | 4.0 ± 1.1 | 2.0 ± 0.8 | |
| ≥71 | 5.6 ± 1.4 | 5.4 ± 1.7 | 6.1 ± 1.4 | 1.0 ± 0.5 | |