FDA Warns Dietary Supplement Companies Illegally Selling Products Containing Cesium Chloride

The U.S. Food and Drug Administration today posted five warning letters issued to companies marketing dietary supplements containing cesium chloride. In a February 2020 public health alert, the FDA warned consumers and health care professionals to avoid using dietary supplements containing cesium salts, primarily cesium chloride. In July 2018, the FDA alerted health care professionals of significant safety risks associated with cesium chloride in compounded drugs. Cesium chloride is sometimes promoted as an alternative treatment for cancer; however, no cesium-chloride-containing products have been approved by the FDA to treat cancer or any other disease.

Cesium chloride is a new dietary ingredient that has not previously been present in the food supply in a non-chemically altered form. Therefore, firms must provide certain safety-related information about the ingredient to...