New study finds neither vitamin D nor calcium reduced the risk of recurrent colorectal adenomas

Posted on: October 15, 2015   by  Vitamin D Council

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A new study has found that daily supplementation of calcium and vitamin D did not reduce the risk of recurrent colorectal adenomas. The authors of the study call for long term trials testing the effect of higher doses of vitamin D and calcium on the prevention of colorectal cancer.

Several news sources have reported on this study:

3 Responses to New study finds neither vitamin D nor calcium reduced the risk of recurrent colorectal adenomas

  1. Davidclements

    Note that this study used 1000 iu Vitamin D3 and 1200 mg Calcium Carbonate. In my opinion, it would be better to specify these dosages prominently in the headline or summary of this type of article. Thanks for considering.

  2. rcbaker200@comcast.net

    1000 units of vitamin D. That’s what were given to the test subjects. It has been known for over a decade that 1000 units will only increase the vitamin D level very slightly if at all. It is close to worthless. I’ve had several thousand patients who are already taking 1000 units when I test them and their level if most often mid 20’s at the most and often lower. This study will cause some people to jump to the wrong conclusion and it is a dangerous study. And the authors of the study know the truth.

  3. Ron Carmichael

    I emailed one of the primary authors. Not holding breath.

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