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Vitamin B6, calcium and vitamin D lower risk for colon cancer
Vitamin B6, calcium and vitamin D lowered risk for colon cancer and the herb Boswellia serrata eased colitis, in four new studies.

In a vitamin B6 study, researchers analyzed the diets of 4,750 participants with colorectal cancer (CRC). After adjusting for age, sex, genetic risk and cancer location, doctors found that those who consumed the most vitamin B6 had 20 percent lower risk for CRC. The scientists also reviewed previously published studies and found that the combined risk for CRC was 19 percent lower in those who consumed the most vitamin B6 compared to those who consumed the least.

In another vitamin B6 study, researchers followed 81,184 Japanese men and women for an average of five years, during which time there were 526 new cases of CRC and found that men who consumed the most vitamin B6 were 31 percent less likely to have CRC than men who consumed the least.

In a calcium and vitamin D study, researchers followed 191,011 American men and women of all major ethnicities, aged 45 or older, for an average of seven years. After adjusting for age, smoking, body mass and dietary fiber intake, doctors found that those who consumed at least 611 mg of calcium per 1,000 calories were 33 percent less likely to have CRC than those who consumed less than 288 mg of calcium per 1,000 calories. For vitamin D, men who consumed at least 276 IU of vitamin D per 1,000 calories were 28 percent less likely to have CRC than those who consumed the least, 39 IU of
vitamin D per 1,000 calories.

In a Boswellia serrata study, 26 participants with chronic diarrhea and thickened colon (collagenous colitis) took 400 mg of Boswellia serrata or a placebo three times per day. After six weeks, 64 percent of those in the Boswellia serrata group had no diarrhea compared to 27 percent for placebo. Five out of seven participants who continued Boswellia serrata for another six weeks also stopped diarrhea.

Reference: Cancer Epidemiology Biomarkers & Prevention: 2008; Vol. 17, No. 1, 171-82.
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