In my Winning the War on Cancer book iodine is presented as a vital component for cancer treatment. It is absolutely vital for preventing and curing breast cancer and probably all forms of cancer would be diminished by its concentrated use. Dr. Tullio Simoncini, an oncologist in Rome, famous for his sodium bicarbonate treatments, uses iodine to treat skin cancer.
Several studies have demonstrated a relationship between low iodine intake and fibrocystic disease of the breast (FDB), both in women and laboratory animals. The first thing that happens to a woman when she develops an iodine deficiency is a problem with her reproductive organs: breast deformation, and general calcification.
Iodine supplementation will gradually eliminate the first phase of the cancer development in the breasts (fibrocystic disease) so no new cancers can start. It also will kill abnormal cells floating around in the body at remote sites from the original cancer. This approach appears to work for prostate cancer as prostate cancer is similar to breast cancer in many respects according to Dr. David Derry.
 Ghent, W., et al, Can. J. Surg., 36:453-460,1993. Eskin, B., et al, Biological Trace Element Research, 49:9-19, 1995.