Research into the cancer benefits of vitamin C have been ongoing, with initial research dating back to the 1970s when researchers reported that patients treated with high doses of vitamin C lived longer than those not treated. More recently, researchers have also investigated the potential cancer benefits of vitamin C, though the evidence remains insufficient.

The latest findings by NIH showed that cancer cells exposed to the ascorbate form of vitamin C were 50 per cent less likely to survive in five out of nine cancer cell lines. Normal cells also tested were unaffected. The study could influence future drug development as additional confirming research is conducted.

To read additional details of the study, click here.

More About Vitamin C
Ascorbic acid, or vitamin C, aids in many functions of the body, including the absorption of iron. Large doses of C do not usually cause toxicity because, as a water-soluble vitamin, it is simply excreted in the urine. People who tend to form kidney stones may find their condition aggravated by vitamin C supplementation or megadosing. Like most vitamins, vitamin C may be obtained in the recommended amount with a well-balanced diet, including some enriched or fortified foods.

For information on additional nutrients visit:Â Medline Plus

Proceedings of the National Academy of Sciences of the United States of America
PNAS is one of the world's most-cited multidisciplinary scientific serials. Since its establishment in 1914, it continues to publish cutting-edge research reports, commentaries, reviews, perspectives, colloquium papers, and actions of the Academy. Coverage in PNAS spans the biological, physical, and social sciences. PNAS is published weekly in print, and daily online in PNAS Early Edition. The PNAS impact factor is 10.5 for 2004. PNAS is available by subscription.

For more information on the Proceedings of the National Academy of Sciences of the United States of America, click here.

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