This website usually posts articles from the medical and scientific literature, however with so much discussion about the diverse role of vitamin D in many diseases, a recent video and article from Fox News is very pertinent. A University of Colorado Cancer Center study recently published in the journal Prostate presented new evidence that vitamin D may help reduce cancer-causing inflammation. Scientists found that a gene GDF-15 – known to be up-regulated (stimulated) by vitamin D – can help block a protein called NFkB, which drives inflammation and stimulates tumor growth. The accompanying video and article speak for themselves. It is suggested that men have their vitamin D3 blood levels checked routinely. Vitamin D3 blood levels of 30-80 ng/mL are optimum. The appropriate blood test for vitamin D3 is the 25-hydroxyvitamin D assay as opposed to the 1,25-dihydroxy assay.