I've also heard of Rene Caisse and Essiac for cancer, I'm very much supportive of using natural remedies as opposed to more harmful traditional treatments and drugs. For those who don't feel completely confident doing natural treatments on their own, just using herbs and vitamins as a complementary addition to the common treatments is beneficial and should be explored. Some doctors recommend that their patients who are going through chemo/radiation should not take any vitamins, that appears to be disinformation, and supplements, including vitamin C, always help the body to deal with the procedures and recover from them.