Colorectal cancer is a cancer that starts in the colon or the rectum. These cancers can also be named colon cancer or rectal cancer, depending on where they start. Colon cancer and rectal cancer are often grouped together because they have many features in common.
Recent studies have suggested that there might be a lower CRC risk with higher vitamin D levels in the blood.
Vitamin D is often called the "sunshine" vitamin, because exposure to sunlight can stimulate production of the vitamin. Vitamin D is found in some foods, especially fatty fish, milk, and fortified cereals. Vitamin Dis also obtained by exposure to sunlight. Some studies have suggested a link between low vitamin D levels and cancer risk and progression, but others have not. None has proven cause and effect.
Long touted for vitamin D role in keeping bones strong — vitamin D also may be important in preventing colon cancer. New research from the American Cancer Society and other public health groups finds people with higher than recommended blood levels of vitamin D have a lower risk of developing colorectal cancer.
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