alt Hacker News>The headline could read instead: No evidence cannabinoid isolates help anxiety, depression, or PTSD.
There’s no evidence that what they tested with was pure THC isolates. If they’re using cannabis in plant form, even if it was bred for higher thc content, there is still cbd.
Those that are interested to click through should and see the studies cited by this metastudy and whether they used whole plant cannabis extracts, cannabis isolates, or even non cannabis derived isolates.
tldr; "If they're using cannabis in plant form" is a very, very high bar for the current state of cannabis (really cannabinoid) research.