Overview
- ProPublica first reported the endorsement, and Johnson confirmed he authorized the jacket blurb while declining further comment on FDA cautions.
- The book, The War on Chlorine Dioxide, by Dr. Pierre Kory, promotes the disinfectant as a cure for conditions ranging from autism to cancer and COVID-19.
- Kory lost American Board of Internal Medicine certification in 2024 over false and misleading COVID-19 statements, though he retains a medical license.
- The FDA warns ingesting chlorine dioxide can cause severe injury or death, and the EPA limits drinking-water levels to 0.8 mg per liter due to toxicity risks.
- Scientists criticized the endorsement, with McGill’s Joe Schwarcz calling the claims “100% nonsense,” and Johnson has a record of amplifying disproven treatments and vaccine misinformation.