§ 573.302 Chromium DL-methionine chelate.
The food additive, chromium DL-methionine chelate may be safely used as a nutritional source of chromium in cattle feed in accordance with the following prescribed conditions:
(a)The additive is manufactured by the reaction of a chromium salt with excess DL-methionine, at an appropriate stoichiometric ratio, to produce a chelate, tris (DL-methioninato) chromium (III) hydrochloride, and with the empirical formula Cr[(CH3S(CH2)2CH(NH2)COO)3]·HCl.
(b)The additive is added to complete feed for cattle at a level not to exceed 0.5 milligrams (mg) of chromium from chromium DL-methionine chelate per kilogram (kg) feed.
(c)The additive meets the following specifications:
(1)Total chromium content, 5 to 6 percent.
(2)Chelated chromium content, not
Free access — add to your briefcase to read the full text and ask questions with AI
§ 573.302 Chromium DL-methionine chelate.
The food additive, chromium DL-methionine chelate may be safely used as a nutritional source of chromium in cattle feed in accordance with the following prescribed conditions:
(a) The additive is manufactured by the reaction of a chromium salt with excess DL-methionine, at an appropriate stoichiometric ratio, to produce a chelate, tris (DL-methioninato) chromium (III) hydrochloride, and with the empirical formula Cr[(CH3S(CH2)2CH(NH2)COO)3]·HCl.
(b) The additive is added to complete feed for cattle at a level not to exceed 0.5 milligrams (mg) of chromium from chromium DL-methionine chelate per kilogram (kg) feed.
(c) The additive meets the following specifications:
(1) Total chromium content, 5 to 6 percent.
(2) Chelated chromium content, not less than 98 percent of the total chromium.
(3) Total DL-Methionine content, 80 to 85 percent.
(4) Hexavalent chromium content, less than 20 parts per million (ppm).
(5) Arsenic, less than 0.1 ppm.
(6) Cadmium, less than 0.05 ppm.
(7) Lead, less than 0.1 ppm.
(8) Mercury, less than 0.05 ppm.
(d) The additive shall be incorporated into feed as follows:
(1) It shall be incorporated into each ton of complete feed by adding no less than one pound of a premix containing no more than 453.6 milligrams of added chromium from chromium DL-methionine chelate per pound.
(2) Chromium from all sources of supplemental chromium cannot exceed a level of 0.5 ppm in complete feed for cattle.
(e) To assure safe use of the additive in addition to the other information required by the Federal Food, Drug, and Cosmetic Act:
(1) The label and labeling of the additive, any feed premix, and feed shall contain the name of the additive.
(2) The label and labeling of the additive and any feed premix shall also contain:
(i) Minimum and maximum guarantees for added chromium content.
(ii) Adequate directions for use and cautions for use including this statement: “Caution: Follow label directions” and, consistent with the directions for use, the following: “Chromium from all sources of supplemental chromium cannot exceed 0.5 parts per million intake of the complete feed for cattle.”
(iii) Appropriate warnings and safety precautions concerning the chromium DL-methionine chelate.
[91 FR 53526, Aug. 19, 2026]