Iodine Daily Value: 150 mcg
The FDA Daily Value for iodine is 150 mcg for adults and children 4+.
Key facts
- Adults & children 4+
- 150 mcg
- Ages 1–3
- 90 mcg
- Pregnant/lactating
- 290 mcg
- Infants
- 130 mcg
- Label rounding
- Regulation: in mcg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0% FDA guidance (nonbinding): nearest 1 mcg
- 20% DV (high)
- 30 mcg
Common amounts of iodine
Per serving, adults and children 4+.
- 5 mcg is 4%
- 10 mcg is 6%
- 20 mcg is 15%
- 50 mcg is 35%
- 100 mcg is 70%
- 200 mcg is 130%
Iodine Daily Value: 90 mcg
The FDA Daily Value for iodine is 90 mcg for children 1–3 years.
- Adults & children 4+
- 150 mcg
- Ages 1–3
- 90 mcg
- Pregnant/lactating
- 290 mcg
- Infants
- 130 mcg
- Label rounding
- Regulation: in mcg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 18 mcg
Per serving, children 1–3 years.
- 5 mcg is 6%
- 10 mcg is 10%
- 50 mcg is 60%
- 100 mcg is 110%
Iodine Daily Value: 290 mcg
The FDA Daily Value for iodine is 290 mcg for pregnant and lactating women.
- Adults & children 4+
- 150 mcg
- Ages 1–3
- 90 mcg
- Pregnant/lactating
- 290 mcg
- Infants
- 130 mcg
- Label rounding
- Regulation: in mcg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 58 mcg
Per serving, pregnant and lactating women.
- 10 mcg is 4%
- 20 mcg is 6%
- 100 mcg is 35%
- 200 mcg is 70%
Iodine Daily Value: 130 mcg
The FDA Daily Value for iodine is 130 mcg for infants through 12 months.
- Adults & children 4+
- 150 mcg
- Ages 1–3
- 90 mcg
- Pregnant/lactating
- 290 mcg
- Infants
- 130 mcg
- Label rounding
- Regulation: in mcg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 26 mcg
Per serving, infants through 12 months.
- 5 mcg is 4%
- 10 mcg is 8%
- 20 mcg is 15%
- 50 mcg is 40%
- 100 mcg is 80%
Questions about iodine
What is the FDA Daily Value for iodine?
The FDA Daily Value for iodine is 150 mcg for adults and children 4 years and older. On a Nutrition Facts label, a serving's %DV for iodine is its amount divided by 150 mcg, times 100.
How do I work out the %DV for iodine?
Divide the amount in one serving by 150 mcg 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, 30 mcg ÷ 150 mcg × 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.
Iodine rounding rules
Amount
Iodine is declared to the nearest 1mcg. Measuring finer than that changes nothing on the label, except below 0.5mcg, where it is declared to the nearest 0.1mcg so a real amount is not printed as 0.
| Amount range | Rounding rule |
|---|---|
| 0 to <0.5 | nearest 0.1 mcg |
| ≥0.5 | nearest 1 mcg |
These mcg 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 mcg≤ amount <1.5 mcg |
| 2% DV | 1.5 mcg≤ amount <4.5 mcg |
| 4% DV | 4.5 mcg≤ amount <7.5 mcg |
| 6% DV | 7.5 mcg≤ amount <10.5 mcg |
| 8% DV | 10.5 mcg≤ amount <13.5 mcg |
| 10% DV | 13.5 mcg≤ amount <18.75 mcg |
| Nearest 5%>10 to 50% DV | |
| 15% DV | 18.75 mcg≤ amount <26.25 mcg |
| 20% DV | 26.25 mcg≤ amount <33.75 mcg |
| 25% DV | 33.75 mcg≤ amount <41.25 mcg |
| 30% DV | 41.25 mcg≤ amount <48.75 mcg |
| 35% DV | 48.75 mcg≤ amount <56.25 mcg |
| 40% DV | 56.25 mcg≤ amount <63.75 mcg |
| 45% DV | 63.75 mcg≤ amount <71.25 mcg |
| 50% DV | 71.25 mcg≤ amount <82.5 mcg |
| Nearest 10%>50% DV | |
| 60% DV | 82.5 mcg≤ amount <97.5 mcg |
| 70% DV | 97.5 mcg≤ amount <112.5 mcg |
| 80% DV | 112.5 mcg≤ amount <127.5 mcg |
| 90% DV | 127.5 mcg≤ amount <142.5 mcg |
| 100% DV | 142.5 mcg≤ amount <157.5 mcg |
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 iodine Daily Value change for children or pregnancy?
Yes. It is 90 mcg for children 1 to 3 years, is 290 mcg during pregnancy and lactation and is 130 mcg for infants through 12 months.
How do I find out how much iodine is in a food?
A Daily Value is a reference target, not a measurement of any particular food. To find the iodine content of a specific ingredient or product, look it up in USDA FoodData Central, then use that amount here to see what a label would declare and what %DV it carries.
Where do these numbers come from?
- Daily Values and label rounding: FDA, 21 CFR 101.9, as of 2026-02-12.
- Iodine Daily Value: 21 CFR 101.9(c)(8)(iv).
- Iodine 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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