Historically, cannabis research in the US and Canada has often used cannabis sourced from a single provider (Lucky Farm) with lower THC levels (5-9%).

“historically in all the literature that we would talk about that's kind of pre the last couple years all that cannabis came from one source which was I believe a farm in like Mississippi that was essentially funded by naida to produce cannabis lucky farm and well the Cannabis that came out of it though and this is one of the reasons a lot of the clinical stuff people have kind of been like oh I don't know how representative this is cuz it reflects cannabis that I would say is more from like the 70s or ' 80s so it would be like 5 to 9% kind of THC cannabis”