The trial found consistent CBD use over 30 days has zero impact on the liver. The study used a decentralized, observational approach with adult consumers of both full and broad spectrum extracts as well as single molecule CBD isolates.
839 participants were involved in the study that posted results on March 23, 2021. The trial assessed the health of the participants liver over a period of 7 months that started in the summer of 2020.
The trial was initiated in response to the US FDA's request for more data on liver toxicity in regular CBD users. The study was sponsored by Charlotte's Web brand and 11 other CBD companies, and cost about $1 million (USD).
A detailed summary from BussinessCann.com and link to more info are here.