| United Kingdom
|
| Age group
|
Intake (μg/day)
|
Maximum intake (μg/day)
|
| Breast-fed infants 0–12 months |
8.5 – 10 |
25
|
| Formula-fed infants (<500 mL/d) |
10 |
25
|
| Children 1 – 10 years |
10 |
50
|
| Children >10 and adults |
10 |
100
|
| United States
|
| Age group
|
RDA (IU/day)
|
(μg/day)
|
| Infants 0–6 months |
400* |
10
|
| Infants 6–12 months |
400* |
10
|
| 1–70 years |
600 |
15
|
| Adults > 70 years |
800 |
20
|
| Pregnant/Lactating |
600 |
15
|
| Age group
|
Tolerable upper intake level (IU/day)
|
(μg/day)
|
| Infants 0–6 months |
1,000 |
25
|
| Infants 6–12 months |
1,500 |
37.5
|
| 1–3 years |
2,500 |
62.5
|
| 4–8 years |
3,000 |
75
|
| 9+ years |
4,000 |
100
|
| Pregnant/lactating |
4,000 |
100
|
| Canada
|
| Age group
|
RDA (IU)
|
Tolerable upper intake (IU)
|
| Infants 0–6 months |
400* |
1,000
|
| Infants 7–12 months |
400* |
1,500
|
| Children 1–3 years |
600 |
2,500
|
| Children 4–8 years |
600 |
3,000
|
| Children and adults 9–70 years |
600 |
4,000
|
| Adults > 70 years |
800 |
4,000
|
| Pregnancy & lactation |
600 |
4,000
|
| Australia and New Zealand
|
| Age group
|
Adequate Intake (μg)
|
Upper Level of Intake (μg)
|
| Infants 0–12 months |
5* |
25
|
| Children 1–18 years |
5* |
80
|
| Adults 19–50 years |
5* |
80
|
| Adults 51–70 years |
10* |
80
|
| Adults > 70 years |
15* |
80
|
| European Food Safety Authority
|
| Age group
|
Adequate Intake (μg)
|
Tolerable upper limit (μg)
|
| Infants 0–12 months |
10 |
25
|
| Children 1–10 years |
15 |
50
|
| Children 11–17 years |
15 |
100
|
| Adults |
15 |
100
|
| Pregnancy & Lactation |
15 |
100
|
| * Adequate intake, no RDA/RDI yet established
|