Officials warn wildland firefighters about the risks of using a supplement for smoke exposure

Fire and medical officials have issued formal warnings to Western wildland firefighters regarding the use of a supplement intended to mitigate the effects of toxic smoke exposure. The advisory comes as crews continue to combat major wildfires across the region, where personnel are frequently subjected to hazardous chemical inhalation.

Authorities are urging caution as the supplement is being offered to those working on the front lines of some of the country's largest blazes. The warnings highlight potential health risks associated with the use of these substances in high-stress, smoke-heavy environments.