Table of Contents
Quick answer
Iodization adds iodine to table salt to prevent deficiency. US iodized salt since 1924 greatly reduced goiter in populations that use it.
The process of adding iodine to table salt to prevent iodine deficiency disorders. Introduced in the United States in 1924, iodized salt is one of the most successful public health interventions in history, virtually eliminating goiter in developed nations.
Iodization adds iodine to table salt to prevent deficiency disorders such as goiter. The United States began widespread iodized salt in 1924, and the practice cut deficiency sharply in many countries. Most table salt in grocery stores is iodized unless labeled otherwise.
In Practice
A family using only non-iodized gourmet salt may need iodine from dairy, seafood, or supplements if intake is low. Public health programs distribute iodized salt in regions where deficiency still appears.