As time goes on, more research confirms: Marijuana has great usefulness in curing cancer. The cure is found in a highly concentrated oil extract, properly known as Full Extract Cannabis Oil (FECO), commonly known as Rick Simpson Oil or RSO after the developer of the FECO.
The link below is a good compendium of resources explaining how FECO works to cause cancer cells to, essentially, kill themselves. It also has links to information about Cannabis juicing.
All told, Cannabis/Hemp/Marijuana is healthy for all life, human, animal and plant.