Niacin Daily Value: 16 mg NE
The FDA Daily Value for niacin is 16 mg NE for adults and children 4+.
Enter this in mg NE. Other units are not converted here.
Key facts
- Adults & children 4+
- 16 mg NE
- Ages 1–3
- 6 mg NE
- Pregnant/lactating
- 18 mg NE
- Infants
- 4 mg NE
- On labels until 2020/2021
- 20 mg · decreased Source (opens in a new tab)
- Label rounding
- Regulation: in mg NE, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0% FDA guidance (nonbinding): nearest 0.1 mg NE
- 20% DV (high)
- 3.2 mg NE
20 mg = 20 mg NE, so the Daily Value went down.
Common amounts of niacin
Per serving, adults and children 4+.
- 0.5 mg NE is 4%
- 1 mg NE is 6%
- 2 mg NE is 15%
- 5 mg NE is 30%
- 10 mg NE is 60%
- 20 mg NE is 130%
Niacin Daily Value: 6 mg NE
The FDA Daily Value for niacin is 6 mg NE for children 1–3 years.
- Adults & children 4+
- 16 mg NE
- Ages 1–3
- 6 mg NE
- Pregnant/lactating
- 18 mg NE
- Infants
- 4 mg NE
- Label rounding
- Regulation: in mg NE, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 1.2 mg NE
Per serving, children 1–3 years.
- 0.2 mg NE is 4%
- 0.5 mg NE is 8%
- 1 mg NE is 15%
- 2 mg NE is 35%
- 5 mg NE is 80%
Niacin Daily Value: 18 mg NE
The FDA Daily Value for niacin is 18 mg NE for pregnant and lactating women.
- Adults & children 4+
- 16 mg NE
- Ages 1–3
- 6 mg NE
- Pregnant/lactating
- 18 mg NE
- Infants
- 4 mg NE
- Label rounding
- Regulation: in mg NE, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 3.6 mg NE
Per serving, pregnant and lactating women.
- 1 mg NE is 6%
- 2 mg NE is 10%
- 5 mg NE is 30%
- 10 mg NE is 60%
- 20 mg NE is 110%
Niacin Daily Value: 4 mg NE
The FDA Daily Value for niacin is 4 mg NE for infants through 12 months.
- Adults & children 4+
- 16 mg NE
- Ages 1–3
- 6 mg NE
- Pregnant/lactating
- 18 mg NE
- Infants
- 4 mg NE
- Label rounding
- Regulation: in mg NE, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 0.8 mg NE
Per serving, infants through 12 months.
- 0.5 mg NE is 15%
- 1 mg NE is 25%
- 2 mg NE is 50%
- 5 mg NE is 130%
Questions about niacin
What is the FDA Daily Value for niacin?
The FDA Daily Value for niacin is 16 mg NE for adults and children 4 years and older. On a Nutrition Facts label, a serving's %DV for niacin is its amount divided by 16 mg NE, times 100.
How do I work out the %DV for niacin?
Divide the amount in one serving by 16 mg NE and multiply by 100. Then round to the nearest 2% up to 10%, to the nearest 5% above 10% and up to 50%, and to the nearest 10% above 50%. For example, 3.2 mg NE ÷ 16 mg NE × 100 = 20%.
How are vitamin and mineral %DV values rounded?
The percentages for vitamins and minerals shall be expressed to the nearest 2-percent increment up to and including the 10-percent level, the nearest 5-percent increment above 10 percent and up to and including the 50-percent level, and the nearest 10-percent increment above the 50-percent level.
Niacin rounding rules
Amount
Niacin is declared to the nearest 0.1mg NE. Measuring finer than that changes nothing on the label, except below 0.05mg NE, where it is declared to the nearest 0.01mg NE so a real amount is not printed as 0.
| Amount range | Rounding rule |
|---|---|
| 0 to <0.05 | nearest 0.01 mg NE |
| ≥0.05 | nearest 0.1 mg NE |
These mg NE increments come from FDA guidance, banded by this group's Daily Value.
% Daily Value
| %DV range | Rounding rule |
|---|---|
| 0 to 10% DV | Nearest 2% |
| >10 to 50% DV | Nearest 5% |
| >50% DV | Nearest 10% |
Every %DV a label can show
What a serving has to contain for a label to print each figure. The %DV is worked out from the actual amount, before that amount is rounded.
| If the label shows | The serving must contain |
|---|---|
| Nearest 2%0 to 10% DV | |
| 0% DV | 0 mg NE≤ amount <0.16 mg NE |
| 2% DV | 0.16 mg NE≤ amount <0.48 mg NE |
| 4% DV | 0.48 mg NE≤ amount <0.8 mg NE |
| 6% DV | 0.8 mg NE≤ amount <1.12 mg NE |
| 8% DV | 1.12 mg NE≤ amount <1.44 mg NE |
| 10% DV | 1.44 mg NE≤ amount <2 mg NE |
| Nearest 5%>10 to 50% DV | |
| 15% DV | 2 mg NE≤ amount <2.8 mg NE |
| 20% DV | 2.8 mg NE≤ amount <3.6 mg NE |
| 25% DV | 3.6 mg NE≤ amount <4.4 mg NE |
| 30% DV | 4.4 mg NE≤ amount <5.2 mg NE |
| 35% DV | 5.2 mg NE≤ amount <6 mg NE |
| 40% DV | 6 mg NE≤ amount <6.8 mg NE |
| 45% DV | 6.8 mg NE≤ amount <7.6 mg NE |
| 50% DV | 7.6 mg NE≤ amount <8.8 mg NE |
| Nearest 10%>50% DV | |
| 60% DV | 8.8 mg NE≤ amount <10.4 mg NE |
| 70% DV | 10.4 mg NE≤ amount <12 mg NE |
| 80% DV | 12 mg NE≤ amount <13.6 mg NE |
| 90% DV | 13.6 mg NE≤ amount <15.2 mg NE |
| 100% DV | 15.2 mg NE≤ amount <16.8 mg NE |
The rules are FDA's; the inversion is ours. Ranges are inclusive at the low end and exclusive at the high end, because an exact half rounds up.
Does the niacin Daily Value change for children or pregnancy?
Yes. It is 6 mg NE for children 1 to 3 years, is 18 mg NE during pregnancy and lactation and is 4 mg NE for infants through 12 months.
What does mg NE mean for niacin?
NE means Niacin Equivalents. 1 mg NE equals 1 mg of niacin, or 60 mg of tryptophan.
Where do these numbers come from?
- Daily Values and label rounding: FDA, 21 CFR 101.9, as of 2026-02-12.
- Niacin Daily Value: 21 CFR 101.9(c)(8)(iv).
- Niacin label rounding: 21 CFR 101.9(c)(8)(iii).
- %DV rounding: 21 CFR 101.9(c)(8)(iii).
- Old Daily Values: 21 CFR 101.9, April 1, 2016 edition.
- 5% low and 20% high: FDA's consumer page on the lows and highs of %DV.
- Dataset: bm-regulatory US Nutrition Label Rules v17.0.0.
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