No chemopreventive effect for calcium or vit D

Contrary to previous research vitamin D and calcium supplements do not lower the risk of colorectal adenomas, a randomised trial published in the NEJM finds. The study randomised 2259 patients with recently diagnosed adenomas that were removed following colonoscopy to supplementation with 1000 IU of vitamin D3, 1200 mg of calcium. Both supplements did not significantly affect ...

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