Iodine supplementation doesn't affect foetal outcome.

[diogenes]

I just make this post which isn't groundbreaking, which shows that giving iodine to pregnant women with a degree of iodine insufficiency improves their personal iodine level but has no effect on the foetus. Unsurprising, because the foetus takes what it needs from the mother, regardless of whether the mother's metabolism is optimal or not. In such cases the mother suffers at the "hands" of the growing baby.

Effects of iodine supplementation during pregnancy on pregnant women and their offspring: a systematic review and meta-analysis of trials over the past 3 decades

in European Journal of Endocrinology

Authors: Pantea Nazeri , Mamak Shariat , and Fereidoun Azizi

1 Family Health Institute, Breastfeeding Research Center, Tehran University of Medical Sciences, Tehran, Iran 2 Family Health Institute, Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran 3 Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran

DOI: doi.org/10.1530/EJE-20-0927

Page(s): 91–106

Volume/Issue: Volume 184: Issue 1

Online Publication Date: Jan 2021

Copyright: © 2021 European Society of Endocrinology 2021

[helvella Administrator Thyroid UK]

Assuming a breastfed baby, does this continue through to weaning? Or does the baby's iodine level drop as it cannot get enough in the milk from the iodine deficient mother?

To be clear, I'm not so much expecting or hoping for an answer as asking the obvious next question.

[haggisplant in reply to helvella]

Boots bf and pregnancy tablets include iodine.

I know someone who has been researching iodine status in pregnant women and younger women, it’s a big issue.

Over dosing on iodine when breastfeeding can affect the baby’s thyroid status.

[haggisplant in reply to haggisplant]

Margaret Rayman describes it in this programme: bbc.co.uk/programmes/b09plrg0

[haggisplant]

Considering post partum thyroiditis is an issue it’s something that should be looked at carefully.