# Potassium iodide — Food additive regulatory approval status — US FDA vs EU

For Potassium iodide, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.375; use conditions is source of essential mineral iodine; maximum intake shall not exceed 225 micrograms of iodine daily, recorded from its source on 2026-08-15.

- **Additive:** Potassium iodide _(verified: appears in the quote below)_
- **Jurisdiction:** US FDA (21 CFR 172–178) _(our reading, not quoted from the source)_
- **Status:** permitted _(our reading, not quoted from the source)_
- **Citation:** 21 CFR 172.375 _(our reading, not quoted from the source)_
- **Use conditions:** source of essential mineral iodine; maximum intake shall not exceed 225 micrograms of iodine daily

## What the source says

> 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

## Source

- https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [Food additive regulatory approval status — US FDA vs EU](https://referencesource.org/food-additive-approval-status-us-vs-eu/).