Intravenous Vitamin C as an Adjunct in Cancer care

It is important to note, that Dr Stewart does not treat cancer, however he does treat patients who have cancer and who are also receiving traditional cancer therapies, such as chemotherapy, immunotherapy and radiation.

Although the literature and clinical studies clearly show IVC has a good safety profile and potentially important anti-tumor activity as an adjunctive therapy in the treatment of cancer, it is not considered a “stand alone” therapy. 


It is one component of multi-faceted comprehensive care that should include other treatments and lifestyle changes that support wellness.  IVC can be used with traditional cancer treatments such as surgery, chemotherapy, and radiation.

Because of IVC's positive effect on cancer symptoms, treatment side effects, enhanced quality of life, and disease outcome, intravenous vitamin C should be considered a valuable adjunctive medical therapy for cancer. 


Administered via IV in high doses (25,000 mg and up), vitamin C behaves like a non-toxic chemotherapeutic agent and can even be given in conjunction with conventional cancer treatments.

IV vitamin C, when administered by a trained, experienced physician, is safe and generally well-tolerated, even at doses as high as 100,000 mg (100 grams) per day.


IV Vitamin C has been used in the supportive care for patients with cancer for many years and has been proven by many studies and patient experiences, to be very beneficial.

One of the main reasons its used by patients, is for improved Quality of Life. This can be a major factor for many patients when undergoing standard medical care, and also patients use it for a variety of other health conditions also.

It is now known, that Vitamin C levels are very often depleted in patients when undergoing chemotherapy in particular, which can also result in having an impact on food and nutrient absorption abilities for many, thereby limiting their ability to maintain good Vitamin C blood plasma levels in their bodies.

This is why IV Vitamin C infusions can be so beneficial to patients as it bypasses any gastrointestinal issues and can be absorbed quickly throughout the body where its needed.

In times of illness, injury or even stress, our metabolic demand for Vitamin C rises, and can quickly deplete our body's reserves and if we also have poor nutrition or no supplementation, it can lead to even more health issues.

Vitamin C is an essential nutrient that is needed at certain levels to maintain good health and in even higher amounts during times of illness.


Now an ever increasing number of new studies have now been able to show more precisely why IVC is so beneficial, to a wide variety of health conditions and especially to patients with cancer.

Explain Hypovitaminosis


You can search PubMed for additional peer reviewed studies for any subject mentioned on this page.

Pubmed- "Vitamin C"

70,489 studies *

This is on Pubmed alone.

There are many other Journals  and Publications going back to the 1930's..

*as of April 2022 - more may be added since

Use the expandable drop down tabs below for more information

Additional Sources

Vitamin C is also known as 'Ascorbic acid' and L-ascorbic acid, is a very highly studied element in medical literature. It is even now also referred to as PAA  - Pharmacological Ascorbate Acid

In the last couple of years there has been a very significant renewed level of interest in IVC and a also lot of new studies have been published, which are now showing even more positive and new information, especially in relation to the cofactor functions of Vitamin C.