Iron tablets taken by millions may cause bowel cancer, new research suggests.
Even low doses of the chemicals ferric citrate and ferric EDTA, which are commonly found in over-the-counter iron supplements, increase levels of a protein associated with the disease, a study found.
Lead author Professor Scheers, from the Chalmers University of Technology, Gothenburg, said: ‘We can conclude ferric citrate and ferric EDTA might be carcinogenic, as they both increase the formation of amphiregulin, a known cancer marker most often associated with long-term cancer with poor prognosis.’