The ongoing conflict in the Middle East is causing a shortage of fluoride, disrupting the ability of some US water utilities to maintain recommended levels in drinking water. The Association of Metropolitan Water Agencies reports that a few utilities have experienced supply disruptions.
Israel is a major global exporter of fluorosilicic acid, and US reliance on imports makes it vulnerable. Workforce challenges in Israel, due to military call-ups, have decreased production, leading to shortages in the US market. While the number of affected utilities is currently small, impacting hundreds of thousands, the situation could worsen as the conflict persists.
WSSC Water in Maryland, serving 1.9 million customers, is among those affected, having lowered fluoride levels. Other communities, like Lititz, Pennsylvania, have temporarily halted fluoridation due to supply issues.
Dentists note that while lower fluoride levels do not compromise drinking water safety, extended periods below 0.5 milligrammes per litre may reduce preventive benefits, particularly for children. Experts recommend brushing twice daily with fluoride toothpaste and maintaining regular dental check-ups. Consultation with a dentist is advised before considering supplements.
Water fluoridation, considered a major public health achievement, benefits oral health by reducing tooth decay. Despite misinformation, the levels used in the US are deemed safe by experts, with no associated adverse health effects.