Iodine deficiency ! - falling intakes - goitregens - competition bromine and fluorine

[R.B.]

An abstract from 1976 !


DIETARY IODINE AND RISK OF BREAST, ENDOMETRIAL, AND OVARIAN CANCER
The Lancet, Volume 307, Issue 7965, Pages 890-891
BruceV. Stadel


Abstract

Geographic differences in the rates of breast, endometrial, and ovarian cancer appear to be inversely correlated with dietary iodine intake. Endocrinological considerations suggest that a low dietary iodine intake may produce a state of increased effective gonadotrophin stimulation, which in turn may produce a hyperœstrogenic state characterised by relatively high production of œstrone and œstradiol and a relatively low œstriol to œstrone plus œstradiol ratio. This altered endocrine state may increase the risk of breast, endometrial, and ovarian cancer. Increasing dietary iodine intake may reduce the risk of these cancers.