Dietary sources of iron and vitamin B12: Is this the missing link in colorectal carcinogenesis?

Therefore, by specifically designing a diet to combine dietary sources with high content of both iron and vitamin B12 could result with a cumulative effect: the cytoprotective effect of vitamin B12, and diminished negative effect of high iron content in the feces. Clarifying the relevance of various dietary sources of iron from the aspect of high vitamin B12 content might provide answers we are still missing in the CRC.