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.
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.
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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.