On Nov. 22, 2021, the updated GB standard for pathogen limit in prepackaferrous fumarate molecular weightged foods (GB 29921-2021) began to take effect. Comparediron ii acetate potassium hydroxide with the old version (GB 29921-2013), several major revisions are made in the new version, which is ferrous gluconate available over the counterbrings significant effect on food manufacturers. ChemLinked summarizferrous sulfate folic acides the new rules and changes, and prwhat is ferric pyrophosphateovides suggestions for stakeholders to better adapt the updated version.