US lawFederal (United States)RegulationsTitle 21 CFR — Food and DrugsChapter I — FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICESPart 573 — FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALSSubpart B — Food Additive Listing573.30021 C.F.R. § 573.300Choline xanthate.Last amended: 2016Year: 2026Length: 33 wordsOfficial source Cite as 21 C.F.R. § 573.300 (2026)Choline xanthate may be safely used as a component of animal feed as an added source of choline to supplement the diets of poultry, ruminants, and swine in accordance with good feeding practice.Previous21 C.F.R. § 573.280Next21 C.F.R. § 573.304