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Vitamin C Foundation

Vitamin C and Cancer

Last Updated: Sat Sep 23 12:58:41 EDT 2017
Note: The following material has been substantially revised and edited based on an edict from the United States Federal Death Administration (FDA).
Vitamin C Foundation "There was something odd about the results of the vitamin C and cancer experiments Linus Pauling reported in the 1980s: patients lived longer - much longer. Those treated with vitamin C lived an average of four times as long as control patients who did not receive vitamin C. This massive improvement was unparalleled in the history of medicine."
Cancer Breakthrough, Handbook on Vitamin C Therapy for Patients and Doctors by vitamin C experts Steven Hickey,PhD, and Hiliary Roberts, PhD.


Recently, exciting research has been published that documents the ability of vitamins C, E and selenium orally to prevent most cancers, and to decrease the mortality of pancreatic cancers, stomach cancers, prostate cancers and other cancers. The Vitamin C Foundation is interested in the how and why vitamin C may help people with cancers feel better.

Almost all vitamin C experts now seem to agree, hydrogen peroxide produced by high levels of ascorbate (vitamin C) plays an important role.

However, vitamin C by itself is relatively weak at this job so don't try low dosages. Experts recommend continuous high dosages of ascorbate (vitamin C) combined with specific adjuncts (e.g. Alpha Lipoic Acid, Vitamin K3, and/or D'Fraction Maitake Mushroom.)

Most experts recommend incorporating high-dose intravenous vitamin C (IV/C) infusions to achieve the high blood concentrations necessary to kill the most tumor cells.

Expert Opinion on 14 Videos: The Case for Vitamin C Against Cancers

Talking to your Oncologist

You may be able to talk your oncologist into going along with vitamin C as an 'adjunct' (not a replacement for) conventional chemotherapy.

Vitamin C Foundation Improvement of terminal cancer patients' health-related quality of life after high dose vitamin C administration... No matter how effective IV/C is against tumors, the high-dose Vitamin C therapy can become an important adjunct to standard therapies by protecting our trillions of good cells from the adverse effects of chemotherapy and radiation. Studies have shown that taking IV/C after these therapies does not interfere with them and patients who take IV/C after chemotherapy do better than those who don't get vitamin C.

Ketogenic Diet

Cancers have increased insulin receptors and thrive on sugar. All carbohydrates reduce to simple sugars during digestion. A low-carb, low-sugar (ketogenic) diet is important to starve fast growing tumors of glucose.

Glucose, a component of most sugars, competes with vitamin C for entry into cells because these molecules are similar. This may be why the low-carb diet enhances vitamin C anti-cancer therapies.

Good Advice: Take Oral Vitamin C Too - All Day

Authors Hickey and Roberts stress that vitamin C should be taken orally 24/7 to keep the oxygen "redox" pressure on cancer tumors (i.e. not only during regular intravenous vitamin C infusions.)

The Cancer Breakthrough
Handbook on Vitamin C Therapy for Patients and Doctors by Steve Hickey and Hilary Roberts

Vitamin C Foundation The new Vitamin C Foundation sugar-free chewables (with Niacin) help with compliance, i.e. one tasty tablet every 3 to 4 hours, and they may help reduce the sugar/carb craving.

Cameron's chewables also contain important ingredients (e.g. cherry flavor, sorbitol and xylitol) that may have contributed to the outstanding Pauling/Cameron results in their Scottish study. Visit this forum topic on how and why new Vitamin C Foundation approved chewable vitamin C may contain Ewan Cameron's Secret Weapon against cancer.

Sunsuke Konno et. al. D'Fraction protocol

"Overall, the combination of D-Fraction and Vitamin C was highly potent, inducing >90% growth reduction in nearly all cancer cells except for a 70% growth reduction in lung cancer A549 cells." — Sensuke Konno, et al. from Townsend Letter issue #349/350, pg 82

Landmark Paper on Vitamin C and D'Fraction for Cancers.

Ralph Moss: Antioxidants Increase Chemo Potency Against Cancer

We recommend the book Antioxidants Against Cancer which clearly explains why antioxidant therapy should be offered to every cancer patient. Ralph Moss, a leading expert on cancer treatments, provides an excellent evidence-based summary, easily understood by both patients and their cancer treatment specialists,

The following tables from the Moss book illustrate that vitamin C the effectiveness of using vitamin C (and vitamin E) as an adjunct to conventional therapies.

Combinations of Vitamin C and Conventional Anticancer Agents
Agent UsedDecrease in Cancer Growth
Vitamin C -5.0%
5-FU 38.0%
5-FU + Vitamin C 95.5%
X rays 72.0%
X rays + Vitamin C 98.2%
Bleomycin 73.0%
Bleomycin + Vitamin C 92.0%

Combinations of Vitamin E and Conventional Anticancer Agents
Agent UsedDecrease in Cancer Growth
Vitamin E 47%
Bleomycin 46%
Bleomycin + Vitamin E 71%
5-FU 37%
5-FU + Vitamin E 71%
Adriamycin 58%
Adriamycin + Vitamin E 88%
Cisplatin 57%
Cisplatin + Vitamin E 82%
Source: Kedar Prasad, University of Colorado, as summarized in Antioxidants Against Cancer by Ralph Moss

Moss Reports and updates on the latest science of Antioxidants and Cancer by Ralph Moss

Review of the Recent Science

Study: Long Term Use of Antioxidant Supplements Cuts Risk of Breast Cancer in Half
Taking antioxidant vitamins for a long term may help prevent breast cancer, according to a study published in the Aug 24, 2011 issue of BMC Cancer.

The study led by S.Y. Pan of Public Health Agency of Canada, Ottawa, Ontario, Canada and colleagues showed that premenopausal women who had taken zinc supplements for 10 years or longer were 54 percent less likely to develop breast cancer, compared to those who had not.

The study also showed that supplementation of multivitamin, beta-carotene, vitamin C, vitamin E and zinc for 10 or more years was associated with 26, 42, 21, 25, and 53 percent reduced risk of breast cancer , respectively, in postmenopausal women.

On the other hand, dietary antioxidants including beta-carotene, alpha-carotene, lycopene, lutein and zeaxanthin, vitamin C, vitamin E, selenium and zinc or supplementation of antioxidants for less than 10 years were not associated with reduced risk of developing breast cancer.

Study: Antioxidant Intake Significantly Decreases Pancreatic Cancer Risk by 67%

What researchers found was that those who consumed the most selenium roughly halved their risk of developing pancreatic cancer compared to participants with the lowest intake. Even more remarkable, participants in the top 25 percent of consumption of vitamins C, E and selenium reduced their risk by 67 percent. The authors concluded that this amount of reduced risk could possibly prevent 8 percent of pancreatic cancers.

Study: Vitamins E, C Cut Prostate Cancer Risk

The study led by E. Bidoli of Centro di Riferimento Oncologico, IRCCS, Aviano, (PN), Italy and colleagues found men who had highest vitamin E intake were 22 percent less likely to develop prostate cancer, compared to those who had the lowest intake. A similar association was found between vitamin C intake and risk of prostate cancer. Men who had the highest intake of vitamin C were 14 percent less likely to develop prostate cancer compared with those who had the lowest intake.

Study: Vitamin C, E and selenium drastically reduce risk of death from gastric cancer (stomach cancer) and esophageal cancer in half.

Gastric cancer or esophageal cancer patients who took vitamin C, E and antioxidative selenium supplements during a 15-year study were 50 percent less likely to die from the cancers. .

Vitamins C and A synergistically fight breast cancer cell growth...

Vitamin C Foundation A study published in the Journal of Nutritional Biochemistry found that administering both vitamin A and vitamin C to cultured human breast cancer cells was more than three times as effective than the administration of either compound alone.

"This is the first time the effect of combining retinoic and ascorbic acid on breast cancer cell proliferation, differentiation, apoptosis and antioxidant-related gene expression has been studied."

The Journal of Nutritional Biochemistry
Volume 17, Issue 7, July 2006, Pages 454.462
Retinoic acid and ascorbic acid act synergistically in inhibiting human breast cancer cell proliferation
Ki-Nam Kima, Jae-Eun Pieb, Jin-Hee Parka, Yoon-Hee Parka, Hye-Won Kima, Meyoung-kon Kima, Corresponding author contact information, E-mail the corresponding author.
More Science
In 1954 McCormick postulated the theory that the factor which preconditions the body to the development of cancer is the degenerative changes caused by continued low levels of ascorbic acid in the body. According to Irwin Stone, additional evidence supporting this hypothesis comes from the work of Goth and Littmann in 1948. They found that cancers most frequently originate in organs whose ascorbic acid levels are below 4.5 mg/dl and rarely grow in organs containing ascorbic acid above this concentration. (Irwin Stone, The Healing Factor, Pg 95. Irwin Stone's 1972 book: The Healing Factor )

Hickey/Roberts Important Cancer Book Ready for Download

How Vitamin C Is Administered Affects How Much Reaches the Bloodstream and May Affect the Results of Studies of Its Potential Effect on Cancer ...

Dr. Cathcart's Vitamin C and Cancer Page

Preparation of Sodium Ascorbate for IV and IM Use... Cathcart's Written Instructions for Physicians

Nobel prize winner's letter on vitamin C and cancer...

NIH (Levine's) Vitamin C/Cancer Paper Now Available - Free Download (pdf)

Even the mainstream is slowly recognizing value of vitamin C in the fight against cancer.

Animal-Based Nutrients Linked With Higher Risk Of Stomach And Esophageal Cancers Vitamin C supplements reduce stomach cancer by 40% Yale researchers also found that regular users of vitamin C supplements were at significantly lower risk of stomach cancer.

Vitamin C and Vitamin K3 cause massive cancer cell death. From Science News.

Vitamin C Foundation comments: Are high antioxidant intakes bad for your health?

Statin Cholesterol-Lowering Drugs and Cancer...

The definitive scientific evidence demonstrating the efficacy and safety of Vitamin C for cancer treatmentbad link

Final Report of the Safety Assessment of [Vitamin C] i.e., L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as Used in Cosmetics...

Vitamin C Foundation These data coupled with an absence of reports in the clinical literature of Ascorbic Acid sensitization strongly support the safety of these ingredients. Note: Report states that fear of tumors is misplaced, as effect is compared to bicarbonate of soda.

FDA Disclaimer
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.