Vitamins could cut risk of colon cancer

Could the use of vitamin and mineral supplements in a regular diet help to reduce the risk of colon cancer and protect against carcinogens? A study published in the Canadian Journal of Physiology and Pharmacology (CJPP) found that rats given regular multivitamin and mineral supplements showed a significantly lower risk of developing colon cancer when they were exposed to carcinogens.

“It has been unclear whether multivitamin supplementation to cancer patients is helpful, has no effect, or is even detrimental during therapy,” commented Dr. Grant Pierce, Editor of CJPP. “This study is important because it gives some direction to cancer patients in desperate need of guidance on the value of multivitamins and minerals administered during cancer.”

The authors studied rats that were fed a high-fat diet (20% fat) over a 32 week period. The rats were divided into 6 groups, which were exposed to different combinations of supplements and carcinogens; the colon carcinogenisis induced in the study rats has characteristics that mimic human colon cancer. Rats fed a high-fat plus low-fibre diet and exposed to carcinogens developed pre-cancerous lesions; whereas, rats undergoing similar treatment, but provided with daily multivitamin and mineral supplements, showed a significant (84%) reduction in the formation of pre-cancerous lesions and did not develop tumours.

The authors conclude that “multivitamin and mineral supplements synergistically contribute to the cancer chemopreventative potential, and hence, regular supplements of multivitamins and minerals could reduce the risk of colon cancer.”

The study “Multivitamin and mineral supplementation in 1,2-dimethylhydrazine induced experimental colon carcinogenesis and evaluation of free radical status, antioxidant potential, and incidence of ACF” appears in the January issue of CJPP.

www.nrcresearchpress.com/cjpp

For more information contact:
Corresponding author: Ignacimuthu Savarimuthu (email: [email protected])

Full Reference:
Arul, A.B., Savarimuthu, I., Alsaif, M.A., Al Numair, K.S. 2012. Multivitamin and mineral supplementation in 1,2-dimethylhydrazine induced experimental colon carcinogenesis and evaluation of free radical status, antioxidant potential, and indicence of ACF. Canadian Journal of Physiology and Pharmacology, 90: 45–54. [Available Open Access on the www.nrcresearchpress.com website.]

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NRC Research Press, the publishing arm of the National Research Council of Canada (NRC) since 1929, transitioned in September 2010 from NRC and the Federal Government of Canada into an independent not-for-profit organization operating under the new name Canadian Science Publishing. Canadian Science Publishing (which continues to operate under the brand NRC Research Press) is the foremost scientific publisher in Canada and one of the most advanced electronic publishing services in the world. With over 50 highly skilled experts and an editorial team comprising some of the world’s leading researchers, NRC Research Press communicates scientific discoveries to more than 175 countries.

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Canadian Science Publishing operates under the brand NRC Research Press but is not affiliated with the National Research Council Canada.  Papers published by Canadian Science Publishing are peer-reviewed by experts in their field.  The views of the authors in no way reflect the opinions of Canadian Science Publishing or the National Research Council of Canada.  Requests for commentary about the contents of any study should be directed to the authors.

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