Proponents of the use of medical marijuana like to start speeches and articles by quickly stating that cannabinoids are of proven value in treating many diseases.
Poppycock. This site has stated repeatedly: not true, not true, not true.
Now the evidence is in, and we were right. JAMA confirms that the evidence supporting the effectiveness of cannabinoids is tenuous at best. And risk of side effects with cannabinoids to treat anything is high.