"Phytic acid [IP6] (inositol hexaphosphate), found naturally in seeds and bran, is nature’s most potent iron chelator (remover). [Cancer 56:717-8, 1985. Free Radical Biology Medicine 8:61-9, 1990; J Biological Chemistry 262:11647-50, 1987]"
BTW, use caution when there is a bleeding problem; as IP6 can thin the blood.