Israel Mandates Iodine Fortification in Table Salt to Combat Widespread Deficiency

Israel's Ministry of Health is introducing new regulations that will require the addition of iodine to table salt sold for household use, aiming to address a significant iodine deficiency within the population. Recent data indicates that approximately 60% of children and 85% of pregnant women tested have shown insufficient iodine levels. The mandate will apply to table salt packaged for home consumption, which accounts for an estimated 85-90% of household salt purchases in Israel. Salts used by the food industry, coarse salt, and specialty salts will be exempt.

The planned fortification level is 30 milligrams of iodine per kilogram of salt. The Ministry estimates this will contribute about 45 micrograms of iodine to an individual's daily diet, representing roughly 30% of the recommended daily intake. Officials describe this dosage as "conservative" and plan to monitor iodine levels in the population post-implementation, adjusting the fortification level if necessary. This initiative follows years of documented iodine shortages, with surveys from 2016 and national biological monitoring data from 2020-2021 showing no substantial improvement.

Potential causes for the deficiency in Israel include the nation's coastal location not providing sufficient natural iodine, a diet not heavily reliant on iodine-rich seafood, and the widespread use of desalinated water, which contains very low iodine levels. Iodine is crucial for thyroid hormone production, essential for growth, development, and metabolism, particularly for fetal brain development during pregnancy and breastfeeding. Insufficient iodine can lead to cognitive impairments, goiter, hypothyroidism, and potentially increase risks of stillbirth, infant mortality, and birth defects.

Iodized salt is a proven and safe public health intervention, already implemented in over 120 countries. The Ministry assures that the proposed fortification level will not exceed safe upper limits for iodine consumption, even for those with high intake. However, they emphasize that this measure does not encourage increased salt consumption, as most salt intake in Israel comes from processed foods. The recommendation to reduce overall salt intake remains in effect. Consumers are advised to store iodized salt in airtight containers in dry places to prevent iodine degradation.