Andreas Kalcker

Andreas Ludwig Kalcker was born in 1961 in Wuppertal, Germany, and later relocated to Spain and then Switzerland. He holds an undergraduate degree in economics and obtained a claimed doctorate from the 'Open University of Advanced Sciences' in Barcelona—an organization investigators have described as an unaccredited degree mill with no campus that awards doctorates for approximately 1,500 euros. Kalcker has reportedly acknowledged the fraudulent nature of this credential by stating he relinquished the doctorate after the institution failed to defend him in media controversies.

Kalcker became a prominent promoter of Miracle Mineral Solution (MMS), a mixture of sodium chlorite and acid that produces chlorine dioxide—an industrial bleaching and disinfection chemical. He rebranded the substance as 'CDS' (chlorine dioxide solution) and published 'Forbidden Health,' a book claiming the substance cures virtually every disease including cancer, AIDS, autism, hepatitis, diabetes, and arthritis. He described the substance as 'the most universal medicine in the world' and—in a fundamental chemical error—called it an antioxidant, when it is in fact a powerful oxidizing agent that damages living tissue.

Kalcker was first arrested in Ibiza in October 2012 by Spanish Civil Guard anti-drug and organized crime agents for violating public health protection laws. The Spanish Attorney General launched a criminal investigation in 2019 charging him with illegal practice of medicine and selling fraudulent drugs. In Argentina, authorities charged Kalcker after a five-year-old boy died following his parents' administration of chlorine dioxide, acting on guidance from a Kalcker-affiliated online community. The FDA has issued multiple warnings against MMS/CDS, and the product has been banned or subject to legal action in the United States, Canada, the United Kingdom, and multiple European and Latin American countries.

Kalcker expanded his platform dramatically during the COVID-19 pandemic, claiming chlorine dioxide could prevent and cure COVID-19. Social media platforms including Twitter and YouTube removed content promoting these claims. Despite ongoing legal proceedings in multiple jurisdictions, Kalcker continues to operate internationally, runs online courses, and promotes his protocol through a network of followers and resellers, primarily in Latin America and Europe.

“Chlorine dioxide (CDS/MMS) cures cancer, AIDS, autism, COVID-19, and all major diseases”

Chlorine dioxide has no verified medical efficacy for any disease. It is an industrial disinfectant. The FDA, WHO, and medical authorities in multiple countries have issued urgent warnings that ingesting it causes severe vomiting, diarrhea, respiratory failure, kidney damage, and death. No clinical trial has ever supported its use as an internal medicine.

“Chlorine dioxide is an antioxidant that supports cellular health”

Chlorine dioxide is a powerful oxidizing agent—the precise opposite of an antioxidant. It oxidizes and damages tissues in the digestive system and red blood cells, causing hemolysis. This basic chemistry error is a central scientific fraud in Kalcker's promotional material.