On Jan. 24, 2018, China CFDA issued implementatiferrous sulfate classon rules on the 2018 national food sampling program, detailing foodiron tablets ferrous gluconate catferrous sulfate 325mg (5gr) tabsegories to be inspected, referenced regulations, inhow much ferrous sulfate is too muchspection method, carbonyl iron vs ferrous sulfateand tested items associated with various types of food.