The invention provides a composition containing ferrous amino acid chelate for the purpose of manufacturing a medicine for regulating fat metabolism, wherein the medicine includes a composition containing ferrous amino acid chelate for effectively regulating fat metabolism dose and a pharmaceutically acceptable carrier thereof.In the composition containing ferrous amino acid chelate, the amino acid can maintain the chelating state with ferrous iron through the stomach, and can effectively control the weight change of the receptor and promote the decomposition of body fat; the pharmaceutical product produced by the composition containing ferrous amino acid chelate has the effect of regulating fat metabolism.本發明提供一種含有亞鐵胺基酸螯合物之組合物用於製造調控脂肪代謝之醫藥品的用途,其中醫藥品包含有效調控脂肪代謝劑量之含有亞鐵胺基酸螯合物之組合物以及其藥學上可接受的載劑。本發明所述之含有亞鐵胺基酸螯合物之組合物中,胺基酸可與亞鐵維持螯合狀態通過胃,且可有效控制受體之體重變化以及促進體脂肪分解;本發明所述之含有亞鐵胺基酸螯合物之組合物製造而得之醫藥品具有調控脂肪代謝之效果。