Associations between selenium and cancer have directed attention to role of selenoproteins in the carcinogenic process. We used data from two population-based case-control studies of colon (n = 1555 cases. 1956 controls) and rectal (n = 754 cases. 959 controls) cancer. https://parisnaturalfoodes.shop/product-category/vitd3-400-iu-liquld/