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Vitamin D offers hope for cancer patients

Vitamin D is often regarded as miraculous because of its capacity to prevent disease and reduce cancer risk and progression, and now scientists have discovered that vitamin D blocks drug-resistant cancer cells — the main cause of failure in chemotherapy treatments. Using cultured tumor cells, researchers from South Dakota State University found that calcitriol and calcipotriol, two active forms of vitamin D, can block a mechanism that enables cancer cells to...