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ABSTRACT & COMMENTARY

Vitamin D and Colorectal Cancer: The Plot Thickens

In a follow-up study, researchers investigated whether single nucleotide polymorphism (SNP) genotypes in the vitamin D and calcium pathways are associated with the authors’ previous findings that daily intake of 1,000 IU vitamin D3 and/or 1,200 mg calcium did not reduce colorectal adenoma risk. The authors concluded that vitamin D3 supplementation benefits in the prevention of advanced colorectal adenomas may vary depending on vitamin D receptor genotype status.