Iron

Iron appears in 16 commercial supplement products across 16 brands in this SuppDB sample, at per-serving doses ranging 0.5–28 mg. It is catalogued as a mineral ingredient, supplied in forms such as Ferrous Fumarate, Iron Bisglycinate, and Ferrous Gluconate. Its NIH PubChem record lists molecular formula Fe, a molecular weight of 55.84 g/mol, and InChIKey XEEYBQQBJWHFJM-UHFFFAOYSA-N. Label reference values in the sample record a recommended intake of 18 mg and an upper safety limit up to 45 mg.