Miracle Mineral Solution, also known as MMS, has been marketed for years as a purported miracle cure for various conditions, including cancer, autism, and COVID-19. MMS is the marketing name for sodium chlorite (NaClO₂), a powerful disinfectant used, among other things, for water treatment. When sodium chlorite is acidified, chlorine dioxide (ClO₂) is formed. Its consumption can be hazardous to health.

A team of scientists from Wroclaw Medical University decided to investigate this.

In a study published in Scientific Reports, they analyzed the effects of acidified sodium chlorite (ASC), from which ClO₂ is produced.