Wildland Firefighters Warned on Risky Supplement

Fire and medical officials have issued warnings regarding the glutathione supplement offered to wildland firefighters exposed to toxic chemicals. The supplement, administered via IV or nebulizer, has not been proven safe or effective. Concerns escalated after at least two pharmacies recalled the product in August 2026 due to bacterial contamination, with some individuals reporting symptoms like fever and severe headache.

The International Association of Firefighters issued a safety advisory, cautioning that glutathione is not an FDA-approved drug. The supplement was notably offered to firefighters during recent blazes around Spokane, Washington, and previously during wildfires in Los Angeles County in January 2025. While some firefighters report feeling better after using it, experts stress the lack of evidence to support these claims.

Physicians and union members raised concerns about unverified health claims, especially given reports of some firefighters feeling worse or becoming sick. Experts like Dr. Cora Sack highlight the biological plausibility of antioxidants combating oxidative stress from wildfire smoke but emphasize the critical need for clinical evidence. Potential risks include airway constriction for those with asthma and severe reactions from contaminated products.

Naturopathic doctors involved, like Jen Riegle, acknowledge the need for research into glutathione's effectiveness in reducing chemical burdens. The ongoing discussion underscores the dangers of smoke exposure from fires burning through urban areas, which release numerous toxic chemicals. Firefighters often work without respirators, increasing their chemical exposure.