“How is Tommy Chong treating prostate cancer? With marijuana, of course. The serially stoned actor says he’s taking hemp oil and smoking weed to treat the illness, with which he was diagnosed a month ago. Chong boasts that his illness only emerged during a three-year drug-free period, preemptively countering detractors who may claim marijuana might have caused his problems. “So I know it had nothing to do with cannabis,” he said. “Cannabis is a cure.” It’s an interesting theory, but unless you want your health going up in smoke, we suggest he put the lighter down and contact a real doctor.” 6/10/2012

http://now.msn.com/pot-is-tommy-chongs-cure-for-prostate-cancer-naturally

Update 5/13/2013:

“Tommy Chong is cancer-free

The Cheech & Chong star revealed last June (12) that he was suffering with stage one prostate cancer, but he decided against traditional medicine to treat the disease and instead opted to overhaul his diet and lifestyle.

Chong has now told fans he has overcome the cancer, and opened up about how he treated the condition.

…doctor changed my diet and put me on supplements, and within a year I brought my PSA (Prostate-Specific Antigen) numbers down drastically and eliminated the cancer threat. I also treated the condition with hemp oil (hash oil). With the diet, the supplements and the hash oil, plus a session with a world-renowned healer, Adam Dreamhealer, I’m cancer-free.

That’s right, I kicked cancer’s a**! So the magic plant does cure cancer with the right diet and supplements.”

More: http://entertainment.ca.msn.com/celebs/tommy-chong-is-cancer-free-1