High vitamin D levels, lower colon cancer risk?

Higher levels of vitamin D in the blood may help protect both men and women from cancers of the colon and rectum, confirm results of the largest study ever conducted on the topic.

Among more than 1200 people who developed colorectal cancer and an equal number who did not, researchers found that those with the highest levels of vitamin D in their blood had a nearly 40 percent reduced risk of developing colorectal cancer compared to those with the lowest levels.

The findings from the EPIC study - short for European Prospective Investigation into Cancer and Nutrition—confirm previous findings from smaller studies conducted largely among North American populations.