# N -Acetyl-L-methionine — Food additive regulatory approval status — US FDA vs EU For N -Acetyl-L-methionine, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.372, recorded from its source on 2026-08-15. - **Additive:** N -Acetyl-L-methionine _(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 172.372 _(our reading, not quoted from the source)_ ## What the source says > § 172.372 N -Acetyl-L-methionine. The food additive N -acetyl-L-methionine may be safely added to food (except infant foods and foods containing added nitrites/nitrates) as a source of L-methionine for use as a nutrient in accordance with the following conditions: ## 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/).