---
kind: "section"
citation: "21 C.F.R. § 172.375"
title: "21"
number: "172.375"
heading: "Potassium iodide."
url: "https://uscodex.org/cfr/21/172.375"
---

# §172.375. Potassium iodide.


The food additive potassium iodide may be safely used in accordance with the following prescribed conditions:

- (a) Potassium iodide may be safely added to a food as a source of the essential mineral iodine, provided the maximum intake of the food as may be consumed during a period of one day, or as directed for use in the case of a dietary supplement, will not result in daily ingestion of the additive so as to provide a total amount of iodine in excess of 225 micrograms for foods labeled without reference to age or physiological state; and when age or the conditions of pregnancy or lactation are specified, in excess of 45 micrograms for infants, 105 micrograms for children under 4 years of age, 225 micrograms for adults and children 4 or more years of age, and 300 micrograms for pregnant or lactating women.
- (b) To assure safe use of the additive, in addition to the other information required by the Act, the label of the additive shall bear:
  - (1) **The name of the additive.**
  - (2) **A statement of the concentration of the additive in any mixture.**

## Notes

### Authority

Authority: 21 U.S.C. 321, 341, 342, 348, 371, 379e.

### Source

Source: 42 FR 14491, Mar. 15, 1977, unless otherwise noted.