Optimizing vitamin D status to reduce colorectal cancer risk: an evidentiary review

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Published on Wednesday, 04 August 2021

Abstract

Vitamin D deficiency is common in the general public and in patients with cancer. Optimizing vitamin D intake is increasingly recognized in cancer risk reduction, particularly in decreasing colorectal cancer risk. Therefore, summarizing the current evidence to promote best practices related to vitamin D intake and colorectal cancer risk reduction is important.

The objectives of this article are to examine the current evidence regarding the impact of vitamin D on colorectal cancer risk reduction and provide practice recommendations for clinicians. Relevant research articles from 2002-2008 were retrieved from multiple electronic databases. Reference lists of relevant articles also were searched manually.

Twenty-five research reports were selected for this article: 4 randomized, controlled trials; 11 cohort or case-control studies measuring serum 25-OH-D levels; and 10 cohort studies reporting vitamin D intake.

This review generated three themes: raising 25-OH-D levels to a vitamin D sufficient state (32-100 ng/ml) achieved colorectal cancer risk reduction, increasing the intake of vitamin D reduced colorectal cancer risk, and increasing vitamin D intake to 1,000 IU daily is safe and likely sufficient to raise serum 25-OH-D levels above 32 ng/ml to achieve colorectal cancer risk reduction. Several practice recommendations are suggested.

 

About this publication.

See also:

- Official Web Site: The Di Bella Method;


 


- The Di Bella Method (A Fixed Part - Dihydrotachysterol, Alfacalcidol, synthetic Vitamin D3);

- Vitamin D (analogues and/or derivatives) and cancer - In vitro, review and in vivo publications;

- The Di Bella Method (A Variable Part - Selenium methonine, 40 μg capsules, twice a day);

- The Di Bella Method (A Fixed Part - Calcium, 2 grams per day, orally);


 


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