CBD or Hemp Oil

thaxter Member Posts: 124

A guitar playing friend of mine on a discussion group who is also an MD suggested that I discuss taking CBD--a non-psychoactive derivative of hemp--because of it's promise in fighting cancer, pain, and nausea.  It's legal in all 50 states apparently and is sold online as oil or gum.  

Anyone here have any experience--first or secondhand--with CBD?  And like any dietary supplements how do I know I'm not getting snake oil if I buy it online.