Glutathione for Firefighters: Hope or Hype?

Pasadena Fire Captain David Marquez described immediate relief from debilitating symptoms like chronic cough and fatigue after inhaling glutathione following the recent Eaton Fire in Los Angeles. The 25-year veteran, who has battled long-term health issues, was among many first responders desperate for solutions after intense smoke exposure. "We were so desperate because of how messed up we were. We were willing to pretty much try anything," Marquez stated.

Scientists have long recognized the severe health risks associated with inhaling toxic smoke from fires. First responders, particularly firefighters, face an elevated risk of developing various cancers, with studies indicating a 14% higher cancer mortality rate compared to the general population, according to the US National Institute for Occupational Health and Safety. Glutathione, a naturally occurring antioxidant in the human body, has emerged as a potential treatment offered at recent large-scale US wildfires, including in Spokane, Washington. Anecdotal evidence from clinicians and fire departments suggests it may help remove cancer-causing chemicals absorbed by firefighters.

Safety and Efficacy Concerns Emerge

Despite promising anecdotal reports, a lack of large-scale research into glutathione's safety and efficacy has raised significant concerns. The International Association of Fire Fighters (IAFF), representing over 360,000 firefighters across the US and Canada, issued a warning last month. The union cited two recent recalls of glutathione products due to contaminants from compounding pharmacies. "We don't know if glutathione is effective," said Sean DeCrane, assistant to the general president for health and safety at the IAFF. He also noted the union opposes how the treatment has been "marketed" to firefighters, with some instances of volunteer tents offering it during wildfire responses. "The lack of research really raised concerns for us," DeCrane added, mentioning that some members reported feeling unwell or worse after receiving the treatment.

The use of glutathione gained traction in 2017 when naturopaths began offering it to crews fighting the Tubbs Fire in Santa Rosa, California. In response to the IAFF's warning, this group, known as IHAN (Integrative Health Action Network), affirmed the need for further testing and offered to collaborate with researchers. Jen Riegle, a licensed naturopath and co-founder of IHAN, stated that their collected data shows "clinically-meaningful improvements in headaches, fatigue and brain fog" among firefighters. She claims the treatments help expel harmful contaminants, though short-term side effects can occur. Riegle emphasized that IHAN's data is anecdotal and intended as a starting point to encourage formal research, not as clinical trial evidence.

Dr. Coralynn Sack, an occupational pulmonologist at the University of Washington specializing in air pollution's health effects, acknowledged the "biological plausibility" of glutathione's mechanism but expressed disappointment with the existing data. "There have been no clinical trials on glutathione in firefighters," she confirmed. Nevertheless, some firefighters, like Marquez, advocate for its availability. Marquez testified in Sacramento against proposed restrictions on glutathione, sharing how it improved his health. "I don't [care] it's a placebo - it was working. Guys were saying they felt better. I felt better," he said, emphasizing the perceived benefits. The broader conversation around firefighter health and safety has evolved, with a greater emphasis on respiratory protection and decontamination to mitigate cancer risks. "Culture has changed drastically," observed a firefighter who received the treatment. "Younger firefighters are taking health way more seriously.".