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, per 21 CFR 101.9. On a Nutrition Facts label, a serving's %DV for iodine is its amount divided by 150 mcg, times 100.

Iodine — FDA Daily Value

The FDA Daily Value for Iodine is 150 mcg for adults and children 4 or more years of age — a Reference Daily Intake (RDI), a fixed target not tied to calories. It changes by population group; see the exact numbers below.

Population group

Daily Value

5% DV

20% DV

Adults & children 4+

150 mcg

7.5 mcg

30 mcg

Children 1–3 years

90 mcg

4.5 mcg

18 mcg

Pregnant & lactating

290 mcg

14.5 mcg

58 mcg

Infants 0–12 months

130 mcg

6.5 mcg

26 mcg

Source: the FDA Daily Values in 21 CFR 101.9 and the FDA's Nutrition Facts label guidance. Cross-check nutrient amounts against USDA FoodData Central.

Example

A serving with 45 mcg of iodine provides 45 ÷ 150 × 100 = 30% DV (High).

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For informational purposes only; verify against § 101.9(c)(8)(iv). · US Nutrition Label Rules v1.3.0 · CFR snapshot 2026-02-12