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Reduce colorectal cancer with 1000 IU of vitamin D - April 2010

Prevention of colorectal cancer with vitamin D.

  • 1000 IU vit D may substantially reduce incidence of colorectal cancer and other diseases

Scand J Gastroenterol. 2010 Apr 5. Epub ahead of print
Rheem DS, Baylink DJ, Olafsson S, Jackson CS, Walter MH.
Department of Gastroenterology, Loma Linda University Medical Center, Loma Linda, USA.
Abstract The fact that colorectal cancer (CRC) is the second leading cause of cancer mortality in the United States emphasizes the need for more effective preventive and therapeutic modalities. There is growing evidence that vitamin D may reduce the incidence of CRC. Results of epidemiologic, in vitro, in vivo animal and clinical studies suggest that a low serum vitamin D level may be a serious risk factor for CRC and a high serum vitamin D level may reduce the risk of CRC. On a molecular level, vitamin D suppresses CRC development and growth by affecting cell proliferation, differentiation, apoptosis, and angiogenesis. Vitamin D insufficiency and CRC are common in the elderly population. Vitamin D insufficiency is simple to screen for and treatable with vitamin D supplementation. Serum 25-hydroxyvitamin D (calcidiol) is the best measure of vitamin D status and should be checked routinely for individuals with risk factors for CRC.
Maintaining serum concentrations of calcidiol above 32 ng/ml (80 nmol/l) in individuals whose serum calcidiol level is low may help prevent CRC as well as osteoporosis, fractures, infections, and cardiovascular disease. Daily calcidiol intake of 1000 International Units can increase serum vitamin D to sufficient levels in most elderly persons and, based on available data, may substantially lower the incidence of CRC with minimal risks.
PMID: 20367197 PubMed - as supplied by publisher

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