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R.B. · 11-22-2013, 03:45 PM

^ This is a 2011 study

Iodine status of pregnant and postpartum Japanese women: effect of iodine intake on maternal and neonatal thyroid function in an iodine-sufficient area.

http://jcem.endojournals.org/content/96/12/3846.long

Based on the secretion of iodine in urine there seems to be a wide variation of intakes in pregnant women from insufficient to probably quite high. There is no suggestion that higher intakes were harmful, but equally the subject is not discussed,beyond reference to one or two figures.

Modern intakes may not be representative of historic intakes, and it will a long time before we know what is happening to the incidence of cancer etc.

ABSTRACT

"The rates of the pregnant and postpartum women who excreted iodine less than 100 μg/liter (0.79 μmol/liter) were 16.1% (110 of 684 women) and 35.7% (190 of 532 women), respectively (P < 0.0001). High iodine excretion greater than 500 μg/liter (4.0 μmol/liter) was found in 22.2% (152 of 684) of pregnant women and 14.1% (75 of 532) of postpartum women (P = 0.0003). Extremely high UI values exceeding 1000 μg/liter (7.9 μmol/liter) were found in 13.5% (92 of 684) of pregnant women and 6.6% (35 of 532) of postpartum women (P < 0.0001)."

11-22-2013, 03:45 PM	#84
R.B. Senior Member Join Date: Mar 2006 Posts: 1,843	Re: Iodine deficiency ! - falling intakes - goitregens - competition bromine and fluo ^ This is a 2011 study Iodine status of pregnant and postpartum Japanese women: effect of iodine intake on maternal and neonatal thyroid function in an iodine-sufficient area. http://jcem.endojournals.org/content/96/12/3846.long Based on the secretion of iodine in urine there seems to be a wide variation of intakes in pregnant women from insufficient to probably quite high. There is no suggestion that higher intakes were harmful, but equally the subject is not discussed,beyond reference to one or two figures. Modern intakes may not be representative of historic intakes, and it will a long time before we know what is happening to the incidence of cancer etc. ABSTRACT "The rates of the pregnant and postpartum women who excreted iodine less than 100 μg/liter (0.79 μmol/liter) were 16.1% (110 of 684 women) and 35.7% (190 of 532 women), respectively (P < 0.0001). High iodine excretion greater than 500 μg/liter (4.0 μmol/liter) was found in 22.2% (152 of 684) of pregnant women and 14.1% (75 of 532) of postpartum women (P = 0.0003). Extremely high UI values exceeding 1000 μg/liter (7.9 μmol/liter) were found in 13.5% (92 of 684) of pregnant women and 6.6% (35 of 532) of postpartum women (P < 0.0001)." Last edited by R.B.; 12-02-2013 at 04:15 AM..