Dr Campbell breaks down how to properly test for mycotoxins using blood serum not urine. Most people don't realize urine only shows what your body is excreting, not what's truly circulating and Mycotoxins: The Invisible Stressors Environmental mould exposure can result in the production of mycotoxins, secondary metabolites that may influence immune regulation, gastrointestinal integrity, neurological function and energy production. In Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method Nature Protocols Glutathione: a powerful antioxidant for a healthy skin