Supplements
Niacin in supplements
7,534 supplements on the U.S. market list Niacin with an amount per serving. The official Tolerable Upper Intake Level for adults is 35 mg a day (supplemental niacin only (nicotinic acid and nicotinamide); not for use under medical supervision).
Tolerable Upper Intake Level (UL)
The highest daily amount that is unlikely to cause harm for almost all healthy people; it applies to supplemental niacin only (nicotinic acid and nicotinamide); not for use under medical supervision.
| Age | Men | Women |
|---|---|---|
| 0-6 months | — | — |
| 7-12 months | — | — |
| 1–3 years | 10 mg | 10 mg |
| 4–8 years | 15 mg | 15 mg |
| 9–13 years | 20 mg | 20 mg |
| 14–18 years | 30 mg | 30 mg |
| 19+ years | 35 mg | 35 mg |
Source: NIH ODS Niacin Fact Sheet for Health Professionals, Table 3 (updated 2022-11-18).
Supplements with Niacin
7,534 shown · page 1 of 157
Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).