Vitamin D lowers risk of colorectal cancer

New study published in the Journal of the National Cancer Institute, was conducted by scientists from NCI, the American Cancer Society, the Harvard T. H. Chan School of Public Health and 20 other medical centers and organizations around the world. The study found that having higher vitamin D levels than are currently recommended by the National Academies for bone health reduced the risk of colorectal cancer by 22 percent.

The study also found that people who had lower levels of vitamin D than recommended (under 30nmol/L) had a 31 percent higher risk of colorectal cancer during a follow-up period of around 5 years.

It is estimated that colorectal cancer kills around half a million people a year worldwide.

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