Black Oxygen Organics was a Canadian multi-level marketing (MLM) company which sold dirt at a price of US$110 per package to customers in Canada and the United States.

[1] The company was founded in 2015 as NuWTR by Marc Saint-Onge, an evangelical Christian, conspiracy theorist, and entrepreneur from Casselman, Ontario, who has sold mud in various forms since the 1990s.

Facing a proposed class action lawsuit of its clients, the company announced its closure in November 2021, two days before American Thanksgiving.

[3] In November 2021, four residents of Georgia filed a class action complaint against the company which alleged that it sold a product contaminated with toxic heavy metals, based on laboratory tests by scientists which confirmed elevated levels of lead and arsenic based on levels of dosage recommended by the company.

[1][4] In December 2021, the US Food and Drug Administration advised consumers to stop using and throw away powder and tablet products from Black Oxygen Organics, citing elevated levels of lead and arsenic in powder sampled at the Canada–United States border.