Recommended Videos A century ago, iodine deficiency affected kids across large swaths of the country. It essentially disappeared after some food makers started adding it to table salt, bread and ...

"Spices and herbs do go bad around one to two years," Bapton says. But the type matters. "Ground spices have about half the ...

Although most people are still getting enough, researchers have increasingly been reporting low levels of iodine in pregnant ...

but they learned that iodine can essentially be sprayed on table salt. Iodized salt first became available in 1924. By the 1950s, more than 70% of U.S. households used iodized table salt.