Higher Vitamin D Intake Associated With Better Colon Health

Colorectal cancer patients are considered early-onset if they are diagnosed before they turn 50 years old. According to a recent study, higher vitamin D intake may be associated with a decreased risk of early-onset colorectal cancer (diagnosis before 50 years old) and precancerous colon polyps.

Participants in the study included 94,205 women who took part in the Nurses’ Health Study II. Participants were followed for an average of 14 years. Every two years they provided information about diet, lifestyle factors, and incidences of colorectal cancer.

The researchers found that total vitamin D intake of 300 IU per day or more was associated with a 50% lower risk of developing early-onset colorectal cancer and precancerous colon polyps. The association was strongest for dietary sources of vitamin D.

The study was conducted by researchers from the Dana-Farber Cancer Institute, and Harvard T.H. Chan School of Public Health. It was published online ahead of print on July 6, 2021, in the journal Gastroenterology.