Is There a Role for Oral or Intravenous Ascorbate (Vitamin C) in Treating Patients With Cancer?

A Systematic Review

  Conclusion. There is no high-quality evidence to suggest that ascorbate supplementation in cancer patients either enhances the antitumor effects of chemotherapy or reduces its toxicity. Given the high financial and time costs to patients of this treatment, high-quality placebo-controlled trials are needed.