1. MFDS (2019) Standards and specifications for food additives. https://www.foodsafetykorea.go.kr/foodcode/04_00.jsp. Accessed 18 Aug 2019
2. The Japan Food Chemical Research Foundation (2021) Standards for use of food additives, according to use categories Japan. 1–25. https://www.ffcr.or.jp/en/upload/StandardsforUseFeb32021.pdf. Accessed 18 Aug 2021
3. FDA (2021) Substances added to food (formerly EAFUS). https://www.cfsanappsexternal.fda.gov/scripts/fdcc/index.cfm?set=FoodSubstances&id=FERROUSGLUCONATE. Accessed 11 Aug 2021
4. EC (European Commission) (2008) Regulation (EC) no. 1333/2008 of the European parliament and of the council of 16 December 2008 on food additives (text with EEA relevance). https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:02008R1333-20191028&from=en. Accessed 4 Aug 2019
5. JECFA (2019) General standard for food additives CODEX STAND 192-1995. Codex Alimentarius International Food Standards, 1–480. http://www.fao.org/gsfaonline/docs/CXS_192e.pdf. Accessed 11 Apr 2019