Cancer is the uncontrolled growth of the cells of the body and can develop in any tissue or organ of the body. The American Cancer Society estimated that there would be more than 560,000 cancer-related deaths in the year 2010. The exact cause of the disease is unknown; however, exposure to chemicals such as benzene, alcohol, family history, radiation, obesity and certain toxins may increase the risk of the condition. The common symptoms include chills, fever, fatigue, loss of appetite and weight loss, and treatment may involve radiation, chemotherapy and surgery. Certain supplements such as ascorbic acid may benefit cancer patients.
About Ascorbic Acid
Ascorbic acid, or vitamin C, is a water-soluble vitamin found in foods such as citrus fruits, tomatoes, berries, cantaloupes and green peppers. It plays an important role in growth and development and, in the repair and maintenance of body tissues. Your doctor may also recommend ascorbic acid supplements to treat vitamin C deficiency, high blood pressure, osteoarthritis, common cold and certain types of cancers. The supplements are available as capsules, tablets, lozenges, syrups, liquid drops and injections. The dosage and form depends on the age of the patient and the condition being treated.
Link Between Ascorbic Acid and Cancer
Intravenous administration of ascorbic acid can lead to formation of hydrogen peroxide, which can in turn, induce the death of cancer cells in the laboratory, according to a September 2005 study published in the journal "Proceedings of the National Academy of Sciences." The Linus Pauling Institute also states that increased intake of vitamin C, or ascorbic acid, from fruits and vegetables may reduce the risk of a variety of cancers including those of the mouth, throat, esophagus, stomach, colon and lungs. However, a clinical trial published in the June 2009 issue of the "Annals of Oncology" revealed that high-dose of intravenous ascorbic acid may not possess any anticancer activity in treating advanced malignancies.
Side Effects
It is not clear whether oral ascorbic acid supplements have the same effect as the oral sources that are more readily available without a prescription. There are no side effects associated with ascorbic acid obtained from fruits and vegetables. However, ascorbic acid supplements may lead to side effects such as diarrhea and upset stomach. Consult a doctor if these symptoms do not go away within 48 hours of starting the supplement. It can also increase the absorption of iron from the foods and should not be taken by individuals with hemochromatosis as it may lead to excessive iron buildup in the body.
Precautions
Always talk to a doctor before using ascorbic acid supplements to prevent or treat cancer. Ascorbic acid supplements may also interact with certain pain and cancer medications. Hence, inform your doctor about your pre-existing conditions and any other medications you might be taking to avoid complications.
References
- Cancer Fats and Figures 2010
- "Proceedings of National Academy of Sciences"; Pharmacologic Ascorbic Acid Concentrations Selectively Kill Cancer Cells: Action as a Pro-Drug to Deliver Hydrogen Peroxide to Tissues; Qi Chen, et al.; September 2005
- Linus Pauling Institute: Vitamin C
- "Annals of Oncology"; Phase I Clinical Trial of I. V. Ascorbic Acid in Advanced Malignancy; L. J. Hoffer, et al.; June 2008
- PubMed Health: Ascorbic Acid



Member Comments