Me? I need salt. About twice what a "average" (whatever that means) person needs.
If I don't get it, I get sick.
I had no idea of the importance of iodized salt. I just remembered it from my childhood & school as being thyroid related. Apparently, there are far more health benefits.
The Flynn Effect that you referenced illustrates how ill-informed most of our power hungry politicians truly are. Wonder why we have not heard from the medical community and pharma. (Maybe because iodized salt is so inexpensive).
http://www.sullivan-county.com/nf0/ep/iq_iodine.htm
Almost one-third of the world’s people don’t get enough iodine from food and water. The result in extreme cases is large goiters that swell their necks, or other obvious impairments such as dwarfism or cretinism. But far more common is mental slowness. When a pregnant woman doesn’t have enough iodine in her body, her child may suffer irreversible brain damage and could have an I.Q. that is 10 to 15 points lower than it would otherwise be. An educated guess is that iodine deficiency results in a needless loss of more than 1 billion I.Q. points around the world.