Glutathione: Firefighters Swear It Helps, Unions Warn It May Be Risky

Sat Sep 12 2026 10:30:46 GMT+0000 (Coordinated Universal Time)

Firefighters report relief after inhaling glutathione, yet unions highlight lack of evidence and potential safety issues.

After battling the Eaton Fire, firefighter David Marquez claimed inhaling glutathione cleared his lungs and eased symptoms, sparking widespread interest. The antioxidant, long used by some wild‑fire crews, is praised for its potential to remove harmful chemicals, but large‑scale research is missing. The International Association of Fire Fighters has cautioned about recalls from compounding pharmacies and the possibility of placebo effects, urging further trials. Experts emphasize the need for proven respiratory protection over untested supplements.

Glutathione: Firefighters Swear It Helps, Unions Warn It May Be Risky

After the Eaton Fire in Los Angeles, 25‑year veteran Captain David Marquez inhaled a dose of glutathione beside the Rose Bowl. He said the treatment “immediately” lifted the chronic cough, headaches and fatigue that had become common among his crew.

Glutathione – a naturally produced antioxidant – is now offered at some of the country’s biggest fires, from Spokane to California’s recent blazes. Proponents argue it can help flush out harmful compounds that silence firefighters’ immune systems and possibly increase cancer risk.

But the International Association of Fire Fighters (IAFF) has issued a rare warning. Recent recalls of contaminated glutathione in Pennsylvania and Oregon’s compounding pharmacies highlighted that the compound can be supplied with metal contaminants, posing additional health hazards.

The IAFF remains cautious: “We don’t know if glutathione is active or a placebo and we don’t know the long‑term effect of this type of treatment,” said Sean DeCrane, the union’s health‑and‑safety assistant. Multiple reports of firefighters feeling worse after treatment were also cited.

“It’s marketed badly, putting us at risk,” DeCrane warned. The union urges regulated, peer‑reviewed studies before widespread adoption.

Naturopath Jen Riegle from the Integrated Health Action Network explains that glutathione often leads to short‑term relief of headaches and fatigue, but stresses that the data are anecdotal, not clinical trials. Riegle hopes IHAN’s documentation will spur formal research.

The dialogue echoes wider concerns about firefighter safety. Dr. Coralynn Sack, an occupational pulmonologist, says supplements lack robust evidence and must not replace proven protection like masks and decontamination protocols.

Despite calls for caution, some firefighters remain convinced. Marquez said he couldn’t see the treatment as placebo if it “worked” and urged others to seek more health options.

This debate underscores an urgent gap: while the need for respiratory protection is clear, the search for supplementary detox methods remains speculative without solid science.