eCFR Reference Browser

---

title: "21 CFR §172.399"

source: "https://www.ecfr.gov/current/title-21/section-172.399"

title_number: "21"

volume_number: "3"

chapter_number: "Unknown"

subchapter_code: "B"

subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"

part_code: "172"

part_subject: "FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION"

subpart_code: "D"

subpart_subject: "Special Dietary and Nutritional Additives"

section_number: "172.399"

section_subject: "Zinc methionine sulfate."

cfr_reference: "21 CFR 172.399"

title_name: "Title 21"

title_subject: "Food and Drugs"

parts_covered: "Parts 170 to 199"

revised_date: "Revised as of April 1, 2019"

publication_date: "As of April 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

Zinc methionine sulfate, CAS Reg. No. 56329-42-1, may be safely used in accordance with the following prescribed conditions:

(a)The additive is the product of the reaction between equimolar amounts of zinc sulfate and DL-methionine in purified water.

(b)The additive meets the following specifications:

(c)The additive is used in tablet form as a source of dietary zinc.

§172.399 - Zinc methionine sulfate.