Abstract Title:

Vitamin D supplementation reduces the occurrence of colorectal polyps in high-latitude locations.

Abstract Source:

Prev Med. 2020 Apr 1:106072. Epub 2020 Apr 1. PMID: 32247012

Abstract Author(s):

R Liam Sutherland, Jennifer Ormsbee, Joy Pader, Nauzer Forbes, Susanna Town, Robert J Hilsden, Darren R Brenner

Article Affiliation:

R Liam Sutherland


There is suggestive evidence for the role of vitamin D in the development of colorectal cancer (CRC). Due to high latitudes in Canada, many Canadians are vitamin D deficient throughout winter. In this analysis, we examined the association between vitamin D supplement use and high-risk adenomatous polyps (HRAPs). The study population was drawn from the biorepository at the Forzani&MacPhail Colon Cancer Screening Centre (CCSC) in Calgary. Individuals enrolled between 2013 and 2016 between the age of 50 and 74 years (n = 1409) were included. When examining the association between any supplemental vitamin D use and HRAPs, a protective effect is observed with an ORof 0.57 (95% CI: 0.33-0.96). Similarly, meeting the recommended daily intake (RDI) of vitamin D (600 IU) is protective against HRAPs with an ORof 0.78 (95% CI: 0.62-0.99). This study suggests that adequate vitamin D supplementation reduces the occurrence of colorectal polyps in high-latitude locations.

Study Type : Human Study

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