CBD: what’s the science behind the wellness trend?

Last month the UK’s Food Standards Authority slashed the
recommended safe daily intake of cannabidiol (CBD) from 70mg to
10mg. An estimated one in 10 people in the UK have used products
containing CBD, and many users believe it can help with ailments
such as insomnia, anxiety and pain. But is there any evidence for
the supposed benefits, and what’s behind the FSA’s decision? Ian
Sample talks to Dr Will Lawn of Kings College University, who has
studied the health effects of CBD, to find out. Help support our
independent journalism at theguardian.com/sciencepod