Based on a 1990–1993 Cohort Study in Southeastern Norway
. . . To conclude, our results show a relation between iron content in drinking water and incidence rates of inflammatory bowel disease. We suggest that these findings are explained by increased oxidative stress or increased bacterial growth that increases the likelihood of adverse immune responses in genetically predisposed individuals.
See complete article at: http://aje.oxfordjournals.org/content/168/9/1065.full