D & Cancer
by Dr. Susan E. Brown, PhD
Research over the last decade clearly documents that vitamin D is a premier modulator of immune function, helping to protect us from infection and at least 16 types of cancer. For example, recent research documents that white blood cells can convert ordinary vitamin D into an active form that is used to make a protein that kills tuberculosis bacteria. Perhaps more striking, however, is the role vitamin D plays in cancer prevention. As it happens, vitamin D is one of the most potent regulators of cell growth, working to prevent initiation and growth of cancerous cells and tumors. Vitamin D activates the “turn off” switch for many types of cancer cells, preventing uncontrolled growth. In fact, at a recent meeting of the American Association for Cancer Research, Dr. Edward Giovannucci of Harvard University challenged “...any of his colleagues to find an area or nutrient or any factor that has such consistent anti-cancer benefits as Vitamin D.” The data, as he notes, are really quite remarkable.


