Can Vitamin D control prostate cancer?

Vitamin D is also known as the “sunshine vitamin” because it’s produced in your skin in response to sunlight. Vitamin D is critical for bone health and general health.


Low levels of vitamin D in blood have been linked to cancer and other diseases.

But taking Vitamin D supplements to control an existing prostate cancer is controversial.

vitamin D

In  the lab, Vitamin D can stop prostate cancer cells growing and spreading.

One human trial suggested better outcome when high strength vitamin D is combined with standard chemotherapy.  But a second trial involving prostate cancer patients showed an unexpected and unexplained increase in death rate in patients taking Vitamin D with chemotherapy.

So the answer is “no” – Vitamin D cannot be used to control prostate cancer.

Related Links:

1. Sung V. 1,25-Dihydroxyvitamin D3 decreases human prostate cancer cell adhesion and migration. Mol Cell Endocrinol. 2000;164:133–143.

2. Moffatt KA. Growth inhibitory effects of 1α, 25-dihydroxyvitamin D3 are mediated by increased levels of p21 in the prostatic carcinoma cell line ALVA-31. Cancer Res. 2001;61:7122–7129.

3. Double-blinded randomized study of high-dose calcitriol plus docetaxel compared with placebo plus docetaxel in androgen-independent prostate cancer: a report from the ASCENT Investigators. J Clin Oncol. 2007 Feb 20;25(6):669-74.

4. Another Clinical Trial Failure – Ascent-2

5. Randomized, open-label phase III trial of docetaxel plus high-dose calcitriol versus docetaxel plus prednisone for patients with castration-resistant prostate cancer. J Clin Oncol. 2011 Jun 1;29(16):2191-8.