Table 1 shows the different SCI values for Lf against different types of cancer cells reported by our research group. Finally, iron metabolism is strongly involved in the metabolic requirements of some cancer cells. It may even lead to the metastasis of tumor cells [71], so that Lf, being a molecule capable of chelating iron ions, also has a mechanism of anti-cancer action based on its ability to balance this ion in the organism [72]. Here, LTF is linked to neoplasm.