• Dr. Harsimranjeet Singh, ND

Intravenous High Dose Vitamin C can Help Cancer Treatments

Vitamin C has been studied for its therapeutic uses for a variety of health conditions. Among the list of health conditions that Vitamin C may help with is as an adjunctive treatment option for Cancer Therapy.

Usually Vitamin C functions as an antioxidant, it quenches reactive oxygen species and returns Oxygen atoms to a balanced electron configuration, so that it does not harm tissue in the body, or more importantly, strands of DNA in the cells.

However, when Vitamin C is used in a very high concentration and delivered by an intravenous drip treatment, it starts to have a pro-oxidant effect. Meaning it actually causes oxidative stress, but it seems to do this inside of Cancer cells only, with limited damage to normal cells. It does this by increasing the production of hydrogen peroxide H202.

What does Vitamin C do for patients receiving chemotherapy?

It has been suggested that high dose Vitamin C may help to reduce a lot of the side effects associated with conventional cancer treatments. Particularly, it may help to reduce fatigue, improve energy, increase appetite, and reduce feelings of nausea. It has also been observed in some studies to increase quality of life in patients with advanced stage cancer. And in some studies it has also been observed that the high dose vitamin C may also suppress cancer growth.

It is important to understand, however, that these therapeutic effects cannot be achieved with oral supplementation. The absorption through the small intestine is limited, and fails to raise the blood concentration of Vitamin C. Therefore, it is important to use intravenous vitamin C for these benefits. It is also important to note, that IV Vitamin C should not be used as a mono therapy (meaning on its own) for the treatment of Cancer. All current studies have evaluated for the benefit of high dose Vitamin C in patients that are receiving conventional cancer treatments.


  1. Klimant, E., Wright, H., Rubin, D., Seely, D., & Markman, M. (2018). Intravenous vitamin C in the supportive care of cancer patients: a review and rational approach. Current Oncology, 25(2), 139.

This article is in no way a replacement for medical advice or medical care, it is advised that anyone concerned about their Health should speak with their Naturopathic Doctor.

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