The controversy over cancer fighting and cancer prevention properties of vitamin C have been in dispute for some time. Linus Pauling, a passionate advocate for the health benefits of vitamin C, was the first to report that vitamin C, when administered intravenously during clinical studies, had the ability prolong life in patients with terminal cancer. The Mayo Clinic conducted double-blind placebo controlled clinical trials, and reported no benefits to vitamin C's ability to improve or prolong the life of cancer patients. Vitamin C was shelved as an alternative therapy.

However, a recent report shows that intravenous administration of the maximum tolerated dose of vitamin C is toxic to cancer cells but not to normal cells. The authors of this study used the National Cancer Institute Best Case Series guidelines in reviewing three cases of advanced cancer where patients had unexpectantly long survival times after receiving high-dose intravenous vitamin C therapy. Interesting. You can review the report in its entirety, here. Judge for yourself.