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Authors of a new study analyzed blood samples drawn from more than 12,000 men and women in 10 studies. The previous studies followed the patients for as long as 33 years, allowing researchers to determine if they developed cancer.
"We did not see lower cancer risk in persons with high vitamin D blood concentrations compared to normal concentrations for any of these cancers," said study co-investigator Dr. Demetrius Albanes of the U.S. National Cancer Institute in an institute news release. "And, at the other end of the vitamin D spectrum, we did not see higher cancer risk for participants with low levels."
However, the researchers did find that people with high levels of vitamin D were more likely to develop pancreatic cancer. It's not clear if there's a cause-and-effect relationship, and the study authors called for more research to assess the possible association.
The findings were published online June 18 in advance of print publication in the July issue of the American Journal of Epidemiology.
-- Randy Dotinga
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