Firefighters say this antioxidant helped them - their union warns it could be risky

Days after he helped extinguish the Eaton Fire in Los Angeles, Pasadena Fire Captain David Marquez inhaled his first dose of glutathione on the side of the road outside the Rose Bowl stadium.The wildfire became the second most destructive fire in California's history, killing 19 and destroying 9,000 buildings. "We were having trouble sleeping," he said of his team. "Chronic cough, headache, fatigue - just a really rough set of symptoms following the fire.""I felt much better immediately after the worst exposure of my career," said Marquez, a 25-year veteran of firefighting, who has battled with health issues for years."We were so desperate because of how messed up we were. We were willing to pretty much try anything," he said.Scientists have long known that inhaling toxic smoke from a fire can cause a huge range of illnesses, including several types of cancers. First responders, like firefighters, are especially susceptible. Firefighters have a 14% increased risk of dying from cancer, external compared to the general American population, according to the US National Institute for Occupational Health and Safety.And as awareness of the risks evolve, so too has interest in alternative...