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The researchers said at least 50 percent of the current global spina bifida cases would be prevented if the major, already existing iodized salt programs took the simple step of adding folic acid.

The world has already changed its salt supply once: from regular salt to iodized salt.

The introduction of iodized salt is thought to have contributed to the gradual rise in IQ scores in the past century.

Dear Heloise: I don't understand the need for iodized salt — not in this day and age!

That makes them largely interchangeable, a flexibility we think will be helpful to readers, as iodized table salt continues to be the salt of choice for a lot of home cooks.