Interesting report on the news today.
Apparently in Australia women (on average) have been suffering from iodine deficiencies over the last 20 years or so.
Lack of iodine in pregnant women leads to less of a certain hormone that can lead to learning difficulties in their offspring.
So I guess all of the benefit of removing lead from our fuels twenty odd years ago has been offset by health campaigns to lower salt consumption! (non-iodized salt being common)
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