Everyone here has pretty much summed it up. Believe me I am an advocate of lifestyle change to help heal you, and support standard medical treatments... but not in place of. I do believe that what you eat very much plays a role in your health and immune system, however it is not the end all and be all. (I'm a vegetarian, who doesn't eat white flour or sugar at all - I eat primarily vegan, boil nothing and eat raw when I can - and I make a killer protein shake every morning) Despite my believe in proper diet I also believe, you must do all you can to heal and fight this cancer. Get your treatments, and pump up your immune system by avoiding junk foods etc... but most importantly get your treatments. Its not fun, it's not easy but it does work.