Dietary recommendations
Australia and New Zealand
| Age group
|
RDI for niacin (mg NE/day)
|
Upper level of intake
|
| Infants 0–6 months |
2 mg/d preformed niacin* |
ND
|
| Infants 7–12 months |
4 mg/d NE*
|
| 1–3 |
6 |
10
|
| 4–8 |
8 |
15
|
| 9–13 |
12 |
20
|
| 14–18 |
– |
30
|
| 19+ |
– |
35
|
| Females 14+ |
14 |
–
|
| Males 14+ |
16
|
| Pregnant females 14–50 |
18 |
–
|
| Pregnant females 14–18 |
– |
30
|
| Pregnant females 19–50 |
– |
35
|
| Lactating females 14–50 |
17 |
–
|
| Lactating females 14–18 |
– |
30
|
| Lactating females 19–50 |
– |
35
|
| * Adequate Intake for infants
|
Canada
| Age group (years)
|
RDA of niacin (mg NE/d)
|
Tolerable upper intake level
|
| 0–6 months |
2 mg/d preformed niacin* |
ND
|
| 7–12 months |
4 mg/d NE*
|
| 1–3 |
6 |
10
|
| 4–8 |
8 |
15
|
| 9–13 |
12 |
20
|
| Females 14–18 |
14 |
30
|
| Males 14–18 |
16
|
| Females 19+ |
14 |
35
|
| Males 19+ |
16
|
| Pregnant females <18 |
18 |
30
|
| Pregnant females 18–50 |
18 |
35
|
| Lactating females <18 |
17 |
30
|
| Lactating females 18–50 |
17 |
35
|
European Food Safety Authority
| Gender
|
Adequate Intake (mg NE/MJ)
|
| Females |
1.3
|
| Males |
1.6
|
| Age (years)
|
Tolerable upper limit of Nicotinic acid (mg/day)
|
Tolerable upper limit of Nicotinamide (mg/day)
|
| 1–3 |
2 |
150
|
| 4–6 |
3 |
220
|
| 7–10 |
4 |
350
|
| 11–14 |
6 |
500
|
| 15–17 |
8 |
700
|
United States
| Age group
|
RDA for niacin (mg NE/day)
|
Tolerable upper intake level
|
| Infants 0–6 months |
2* |
ND**
|
| Infants 6–12 months |
4*
|
| 1–3 |
6 |
10
|
| 4–8 |
8 |
15
|
| 9–13 |
12 |
20
|
| Females 14–18 |
14 |
30
|
| Males 14–18 |
16 |
30
|
| Females 19+ |
14 |
35
|
| Males 19+ |
16 |
35
|
| Pregnant females 14–18 |
18 |
30
|
| Pregnant females 19–50 |
18 |
35
|
| Lactating females 14–18 |
17 |
30
|
| Lactating females 19–50 |
17 |
35
|
* Adequate intake for infants, as an RDA has yet to be established
** Not possible to establish; source of intake should be formula and food only
|
|
The U.S. Institute of Medicine (renamed National Academy of Medicine in 2015) updated Estimated Average Requirements (EARs) and Recommended Dietary Allowances (RDAs) for niacin in 1998, as well as Tolerable upper intake levels (ULs). In lieu of an RDA, Adequate Intakes (AIs) are identified for populations for which there is not enough evidence to identify a dietary intake level that is sufficient to meet the nutrient requirements of most people. (see table).