A relative posted an article on Facebook supposedly from Johns Hopkins saying that diet is better than chemotherapy and surgery for countering cancer. I do believe that diet and exercise are important parts of preventing cancer or recovering from it, but this sounded "too good to be true".
Sure enough, a search for "Johns Hopkins", cancer, diet, and radiation turned up "Cancer Update Email -- It's a Hoax" from The Sidney Kimmel Comprehensive Cancer Center of Johns Hopkins Medicine rebutting much of what it was in the email.
Emails such as this are a cancer themselves. The Johns Hopkins article was last updated April 2009!! But the cancer of false information lives on.