A team led by U.S. National Cancer Institute epidemiologist Michal Freedman tracked 16,818 people who joined a nationwide U.S. government health survey between 1988 and 1994, following them through 2000. Among them, 536 died of cancer. The participants provided blood samples that the researchers used to determine the level of vitamin D in their blood. People with higher levels of vitamin D when they entered the study had about a 72 percent reduced risk of dying from colorectal cancer compared to those with the lowest levels of vitamin D, as reported in the Journal of the National Cancer Institute.
Steve - not surprising to us of course. However, very nice to see in a large, government funded study.
Wednesday, October 31, 2007
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