Summary
Some U.S. water utilities are facing a shortage of fluoride because the war in the Middle East has disrupted supplies from Israel, a major exporter of fluoride chemicals. As a result, some communities are lowering fluoride levels in their drinking water, but health experts say a short-term decrease is unlikely to harm most people.
Key Facts
- Fluoride helps prevent tooth decay and is added to public water supplies voluntarily.
- Israel is a top exporter of fluorosilicic acid, a key fluoride chemical used by U.S. water systems.
- Workforce shortages in Israel due to military service have reduced fluoride production.
- The shortage has affected some U.S. water utilities, including WSSC Water in Maryland and a borough in Pennsylvania.
- WSSC Water reduced fluoride levels from 0.7 to 0.4 milligrams per liter to stretch supplies.
- A short drop in fluoride levels is not considered dangerous for drinking water safety.
- Lower fluoride over many years may increase tooth decay, especially in children.
- Dentists recommend brushing with fluoride toothpaste and visiting the dentist regularly during the shortage.
